4 Permanent Stellen in Interlaken gefunden

(Translation of the original instructions)
IEC squirrel cage rotor standard motors/generators
Explosion-protected standard motors
Brake motors
Permanent magnet synchronous motors/generators
Elektromotorenwerk Brienz AG
Mattenweg 1
CH-3855 Brienz
Tel: +41 (0)33 952 24 24
Fax: +41 (0)33 952 24 00
Edition: 11.2021
Write an email
80000203A
www.emwb.ch

Revision:
Version-No.
Edition
Description
Issued
Approved
V1.10en
02.05.2016
Final version
DOG/Rud
EMWB TM
V1.20en
02.06.2017
Declaration of compliance
DOG/Rud
EMWB TM
V1.30en
16.05.2019
Declaration of conformity
DOG/Rud
EMWB TM
V1.40en
16.11.2021
Update
DOG/Rud
EMWB TM
2
80000203A 11.2021

1
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
1.1
About these instructions .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
1.2
Manufacturer .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
1.3
Copyright .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
1.4
Guarantee .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
1.5
Conformity .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
1.5.1
Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
1.5.2
Analyses run on the motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
1.5.3
Person authorised for documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
1.5.4
Language of the operating and maintenance instructions . . . . . . . . . . . . . . . . . . . . .
9
1.5.5
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
1.6
Abbreviations used in this manual .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.7
Additional relevant documents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.8
Area of applicability .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
1.8.1
Type code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
1.8.2
Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
2
Safety .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
2.1
Information for the persons in charge of the systems .. . . . . . . . . . . . . . . . . . .
14
2.2
Basic safety regulations .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
2.3
Warning concept .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
2.4
Symbols used in the manual .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
2.5
General safety regulations .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
2.5.1
Regulations and standards of overriding importance . . . . . . . . . . . . . . . . . . . . . . . .
17
2.5.2
Inspections, maintenance and monitoring obligation . . . . . . . . . . . . . . . . . . . . . . . .
17
2.5.3
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
2.5.4
Safety instructions in the chapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
2.6
Responsibilities .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
2.6.1
Qualified personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
2.6.2
Authorised persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
2.7
General hazards and work protection .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
2.7.1
Work clothes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
2.7.2
Cleanliness at the workplace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
2.7.3
Electrical danger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
2.7.4
Danger from rotating parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
2.7.5
Danger from hot surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
80000203A 11.2021
3

3
Description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1
Area of application .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1.1
Correct use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1.2
Incorrect use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1.3
CE-mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2
Delivery .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3
Structure .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3.1
Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3.2
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3.3
Clearances between attaching parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.3.4
Design of the bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.3.5
Mechanical load values of the motor shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.3.6
Balance quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.3.7
Torque transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.3.8
Design of the winding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4
Application engineering .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1
Transport .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1.1
Symbols on the packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.2
Storing .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2.1
Storing outdoors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2.2
Storing indoors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2.3
Short-term storage (= 2 months) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2.4
Long-term storage (> 2 months) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.2.5
Corrosion protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.3
Electromagnetic compatibility .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5
Assembly .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.1
Safety-relevant instructions .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.2
Erection .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.3
Fixing in place .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.4
Cooling .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.5
Balancing / shaft attached parts .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.6
Special measures .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.7
Removing add-on parts .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6
Electrical connection .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.1
General .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.2
Connection diagram .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4
80000203A 11.2021

6.2.1
Y, D, Y/D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
39
6.3
Junction boxes .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
41
6.4
Tightening torques .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42
6.4.1
Electrical connections - terminal board connections . . . . . . . . . . . . . . . . . . . . . . . .
42
6.4.2
Cable glands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42
6.5
Connecting the ground conductor .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
43
6.5.1
Ground cross sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
43
6.6
Concluding measures .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
44
7
Optional accessories .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
45
7.1
Brake .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
45
7.1.1
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
45
7.1.2
Description of brake motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
46
7.1.3
Braking power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
46
7.1.4
Maintenance of the brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47
7.1.5
Electrical supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
48
7.1.6
Half-wave rectifier and bridge rectifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50
7.1.7
Switching schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
52
7.2
Incremental encoder .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
54
8
Startup .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
55
8.1
Insulation resistance .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
55
8.1.1
Checking the insulation resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
55
8.2
Measures to be taken before commissioning .. . . . . . . . . . . . . . . . . . . . . . . . . .
57
8.3
Switching on .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
58
8.3.1
Measures to be taken when commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
58
9
Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
59
9.1
Safety instructions for operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
59
9.2
Safety instructions for cleaning .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
60
9.3
Operation at the frequency converter .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
61
9.3.1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
61
9.3.2
Influence of potential equalisation / circuit continuity . . . . . . . . . . . . . . . . . . . . . . . .
61
9.3.3
Insulation system thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
61
9.4
Shutdowns .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
62
9.5
Fault table .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
62
10
Repairs .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
64
10.1
Preparation and notes .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
64
80000203A 11.2021
5

10.2
Optional models .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
10.3
Touch-up paint damage, repaint .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
10.3.1
Repainting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
10.4
Inspection .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
10.4.1
General inspection instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
10.4.2
Initial inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
10.4.3
Main inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
10.5
Maintenance .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
10.5.1
Maintenance interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
10.5.2
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
10.6
Cleaning .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
10.6.1
Cleaning the cooling air paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
10.6.2
Condensation water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
10.7
Repairs .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
10.7.1
Repair instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
10.8
Bearing, bearing replacement .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
10.8.1
Bearing method and bearing types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
10.8.2
Lifetime of bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
10.8.3
Replacing the bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
11
Spare parts .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
11.1
Ordering parts .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
11.2
Definition of subassemblies .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
12
Disposal .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
12.1
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
12.2
Preparing for disassembly .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
12.3
Disassembly of the motor .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
12.4
Dispose of the components .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
12.4.1
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
12.4.2
Fluids, lubricants and chemicals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
12.4.3
Packaging material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
13
Explosion-protected standard motors .. . . . . . . . . . . . . . . . . . . . . . . . . 79
13.1
Part number code .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
13.2
Nameplates .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
13.3
Repairs and modifications plate .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
13.4
Assembly and erection .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
13.5
Electrical connection .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
6
80000203A 11.2021

13.5.1
Cable glands on Ex-protected motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
85
13.5.2
Connecting the ground conductor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
85
13.5.3
Ground cross sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
86
13.5.4
Concluding measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
86
13.6
Commissioning Ex-protected motors .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
86
13.7
Operating Ex-protected motors .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
87
13.7.1
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
87
13.7.2
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
87
13.8
Operation at the frequency converter .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
88
13.8.1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
88
13.8.2
Motors to be fed by frequency converter with alternating frequency and voltage . .
88
13.8.3
Safety switch-off when operating with a frequency converter . . . . . . . . . . . . . . . . .
88
13.9
Repairs .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
89
13.9.1
Repainting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
89
14
Permanent magnet synchronous motors/generators .. . . . . . . . . . .
90
14.1
Use of permanent magnet synchronous motors/generators .. . . . . . . . . . . . . .
90
14.2
Motor-driven operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
90
14.3
Operation by generator .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
90
14.4
Safety instructions .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
90
14.5
Maintenance .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
91
15
Technical data .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
92
16
Glossary .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
93
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1 Introduction
1

1.1

These operating and maintenance instructions inform you on the handling of the motors, from
their delivery up to their disposal. Store these instructions for future reference.
Read and follow the operating instructions before handling the motor. This ensures risk-free,
smooth function and a long lifetime of the motor.
The shop papers are enclosed with each motor in addition to these operation instructions.
These are binding and always have higher priority.
If you have any suggestions on how to improve this document, please contact EMWB.
1.2

Elektromotorenwerk Brienz AG
Mattenweg 1
CH-3855 Brienz
1.3

All rights reserved. These operating and maintenance instructions may not be reproduced,
either completely or partially without the written permission of EMWB; neither must they be
converted into an electronic format or any format that can be read by a machine.
1.4

The warranty and liability is based on the conditions stipulated in the contract. All warranties
and conditions stipulated in the contract must be stored together with this manual.
Modifications to the motor or to its protective equipment are forbidden. Only instructed by
EMWB may carry out repairs and maintenance on the motor.
The warranty and liability claim becomes void if unauthorised changes are made to the
system without prior knowledge of and approval by EMWB.
8
80000203A 11.2021
1 Introduction
1.5

1.5.1
Guidelines
The motors have been designed and built compliant with the guidelines of directive 2014/35/EU
(low-voltage directive), and are for use in industrial plants. When using the motors outside of
the European Union, the regulations in the country in question must be observed.
1.5.2
Analyses run on the motors
Residual risk assessment, run by EMWB.
1.5.3
Person authorised for documentation
Person authorised for compiling the technical documentation::
Elektromotorenwerk Brienz AG, Mattenweg 1, CH-3855 Brienz Switzerland.
1.5.4
Language of the operating and maintenance instructions
These original operating and maintenance instruction were originally written in German,
versions in other languages have been translated and derived from the original.
80000203A 11.2021
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1 Introduction
1.5.5
Declaration of conformity

EU-KONFORMITÄTSERKLÄRUNG
im Sinne der Niederspannungsrichtlinie 2014/35/EU

EU DECLARATION OF CONFORMITY
according to the Low Voltage Directive 2014/35/EU

UE DÉCLARATION DE CONFORMITÉ
dans la sens de la Directive Basse Tension 2014/35/EU

Wir Elektromotorenwerk Brienz AG
We
Nous *** CH - 3855 Brienz BE*

erklären in alleiniger Verantwortung, dass das Produkt
declare under our sole responsibility that the product
déclarons sous notre seule responsabilité que le produit

R... / F... / AF... / BF... / RF...
G... / AK...
Asynchronmotor / Synchronmotor der Typenreihe PR... / Q... / GEN... / RR...
AC induction motor / AC synchronous motor WA... / 7WA... / 70WA... / 3A... / 3B.../ 3C...
of series DMA... / DMA2... / DM1... / HJA... / HJN...
Moteur asynchrones / moteur synchrones, OMT1... / OMT2...
séries complètes de T1A... / T2A... / T3A.../ T4A... T1C... / T2C... / T3C.../ T4C...
TM... / MS... / MY...
E...S... / D...S... / EBF... / DKF...

die einschlägigen Harmonisierungsrechtsvorschriften der Union erfüllt.
comply with the relevant Community harmonisation legislation.
est conforme à la législation communautaire d'harmonisation.

• Niederspannungsrichtlinie 2014/35/EU - ErP-Richtlinie 2009/125/EG 1)
  Low Voltage Directive 2014/35/EU Directive 2009/125/EC ( ErP) 1)
  Directive Basse Tension 2014/35/EU Directive ErP 2009/125/EC 1)

• EMV-Richtlinie 2014/30/EU
  EMC directive 2004/108/EU
  Directive CEM 2014/30/EU

• Elektrische Ausrüstung
  Electrical Equipment EN60204-1:2006 + A1:2009 + AC:2010,
  L'équipement électrique EN 60204-11:2000 + AC:2010

• Drehende elektrische Maschinen
  Rotating electrical machines
  Machines électriques tournantes

EN 60034-1:2010 + AC:2010, EN 60034-2-1:2007, EN 60034-5:2001 + A1:2007,
EN 60034-6:1993, EN 60034-7:1993 + A1:2001, EN 60034-8:2007 + A1:2014,
EN 60034-9:2005 + A1:2007, EN 60034-11:2004, EN 60034-12:2002 + A1:2007,
EN 60034-14:2004 + A1:2007, EN 60034-30:2009

1. Soweit die Produkte in den Anwendungsbereich der ErP-Richtlinie fallen, werden die Anforderungen der Verordnung (EG) Nr. 640/2009 vom 22. Juli 2009
   bzw. Verordnung (EU) Nr. 4/2014 vom 06. Januar 2014 erfüllt.
2. As far as the products fall under the scope of the Directive 2009/125/EC ( ErP) the requirements of the regulation (EG) No.
   640/2009 dated from July 22nd, 2009 and Regulation (EU) No. 4/2014 dated from January 6, 2014 are fulfilled.
   1) Tant que les produits tombent du champ d'application du Directive ErP 2009/125/EC ils répondent aux exigences du règlement (EG) nr. 640/2009 du 22.
   juillet 2009 et du règlement (EU) nr. 4/2014 du 6. janvier 2014.

Brienz, 18.04.2019 Markus Thöni
Geschäftsleitung technischer Bereich
Technical Management
Direction technique
10
80000203A 11.2021
1 Introduction
1.6

EMWB
Elektromotorenwerk Brienz AG
Motor
IEC squirrel cage rotor standard motors
1.7

• Motor data sheet
• Technical description "Electrical version"
• Technical description "Mechanical version"

80000203A 11.2021
11
1 Introduction
1.8

This manual contains all versions of the IEC squirrel cage rotor standard motors/generators,
Ex-protected standard motors, brake motors and permanent-magnet synchronous motors/
generators.
1.8.1
Type code
Standard motors

• Model

Foot/flanged model

• Size (axis length in mm)
• Housing length (for stator housing IEC)

long

• Overall length (for stator housing IEC)

Special construction

• Number of poles
• Special models

Bimetal switching contact NCC / NOC (in the winding)
KY
KTY / PT 100 /PT1000 etc. (in the winding)
Designation example: RF 112MY-4 S M FB B IG
12
80000203A 11.2021
1 Introduction
1.8.2
Nameplate
Nameplate

• Squirrel cage rotor three-phase motors
  Mains operation

80000203A 11.2021
13
2 Safety
2

2.1

The motors have been designed and built compliant with the guidelines of directive 2014/35/EU
(low-voltage directive), and are for use in industrial plants. When using the motors outside
of the European Union, the regulations in the country in question must be observed.
Local and branch-specific safety and construction/installation regulations must always be
observed.
The persons responsible for the system must ensure the following:

• Planning and configuration work as well as all work on and with the motors will only be
  carried out by qualified personnel.
• This manual is available at all times.
• The technical data as well as specifications regarding permissible installation, connection,
  environmental and operating conditions will be observed consistently at all times.
• The specific safety and construction/installation regulations, as well as the regulations on
  the use of personal protective equipment/clothing will be observed at all times.

Note:
Our customer service department is available to provide support during planning, installa-
tion, startup and service of the motors.
The safety instructions in the single chapters are for the protection of all persons working with
the motors, and are also intended to prevent damage to property. The safety instructions must
be observed.
2.2

For personal safety, as well as to avoid damage to property, the safety-relevant instructions
and the following basic safety regulations must be observed at all times as per EN 50110-1
"work under absence of voltage". The basic safety regulations must be applied in the
following order.
1.
Isolate the equipment (also isolate all auxiliary circuits).
2.
Secure against reactivation.
3.
Verify that the system is deenergized.
4.
Earth and short-circuit the isolated equipment.
5.
Cover or cordon off adjacent live parts.
After completing work, lift the restrictions in the reverse order.
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80000203A 11.2021
2 Safety
2.3

The motors are designed and built according to the state-of-the-art in full observance of the
safety regulations. However, there are residual risks in some areas. Notice is provided of these
either on the motors themselves or in the operating and maintenance instructions.
The whole of chapter «2
Safety» applies to all those working on the motor as well as to the
system administrator, and must be viewed by such persons as mandatory. The general safety
instructions named in this chapter are supplemented at the relevant locations in the respec-
tive chapters by special safety instructions.
Warnings are designed as follows:
i DANGER!
Indicates an immediate risk or hazard. If not avoided, the consequences will be fatal or
result in irreversible injuries.
Behaviour guideline on how the hazard can be avoided.
i WARNING!
Indicates a situation where there is a possible risk or hazard. If not avoided, the conse-
quences may be fatal or may result in irreversible injuries.
Behaviour guideline on how the hazard can be avoided.
i CAUTION!
Indicates a situation where there is a possible risk or hazard. If not avoided, the conse-
quences may result in minor or slight injuries.
Behaviour guideline on how the hazard can be avoided.
NOTICE!
Designates the possibility of the occurrence of damage to property only if the work ins-
tructions are not observed.
Behaviour guideline on how the damages can be avoided.
80000203A 11.2021
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2 Safety
2.4

Risk of fatal electrical shock!
There are live parts behind covers marked with a lightning bolt (high-voltage
warning sign). Touching these parts may result in fatal or severe injuries. The
covers marked with a lightning bolt may only be removed by authorised per-
sons (see Chapter «2.6.2
Authorised persons»).
Risk of injury from falling parts!
Suitable hoisting gear must be provided on-site (crane, ropes, chains). Never
stand under suspended loads.
Risk of injury from entanglement or impact from load!
Take care when handling revolving parts. Never reach into machine parts
that are running. Before handling, always switch off the motor and secure it
against being unintentionally switched back on.
Risk of injury from rotating elements!
Take care when handling rotating parts. Never reach into machine parts that
are running. Before handling, always switch off the motor and secure it
against being unintentionally switched back on.
Injuries caused by heat!
The motor casings can become very hot. Do not touch the casing, or allow
it to cool down first.
Risk from aggressive, chemical substances!
Aggressive, chemical substances can cause severe skin and eye injuries. If
you come into contact with them, immediately wash your skin and eyes and
contact a doctor.
Inhalation of hazardous vapours!
Gases and vapours that are injurious to health can arise when working with
chemical substances. Always observe the instructions on the packages.
Risk of explosion!
IEC squirrel cage rotor standard motors must not be used in explosive envi-
ronments.
Ex-protected standard motors are not suitable for hybrid explosive environ-
ments. Increased safety "e", non-sparking model "nA" and for Zone 2 in ar-
eas exposed to explosion hazards may only be used in accordance with the
stipulations of the appropriate regulatory authority. It is their job to determine
the explosion hazard (classification of hazardous areas/zones). The dust-lay-
er height for Zone 21 and Zone 22 motors must not exceed max. 5 mm.
16
80000203A 11.2021
2 Safety
Safety shoes must be worn (mandatory)!
Safety shoes must be worn to avoid injuries when moving the motor!
Safety informations for explosion-protected motors!
The increased danger in areas exposed to explosion hazards demands that
special care and attention be taken of any instructions marked with the Ex
symbol.
2.5

2.5.1
Regulations and standards of overriding importance
The local safety and accident-prevention regulations apply in all cases for operation of the
motors.
A motor must only be put into operation when all safety-relevant preventive measures of
the system in which it is installed have been implemented (e.g. covers, overload protec-
tions, etc.).
2.5.2
Inspections, maintenance and monitoring obligation
The operator must correctly run the inspection and maintenance work listed in this manual at
the prescribed intervals and must always keep the motors in perfect working order. Safety-
relevant events must be communicated to the manufacturer immediately.
EMWB accepts no liability for damages resulting from incorrectly run or omitted inspection
or maintenance work.
2.5.3
Spare parts
Only use original spare parts from EMWB. Otherwise, all warranty claims are void and neither
safe operation nor operation within the specifications of the motor is guaranteed.
2.5.4
Safety instructions in the chapters
Additional safety instructions are contained in the single chapters.
These safety instructions and warning instructions must always be followed in addition to the
safety instructions in chapter «2
Safety».
80000203A 11.2021
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2 Safety
2.6

2.6.1
Qualified personnel
Motors may only be handled by qualified personnel. Qualified personnel are persons who, due
to their training and experience, are qualified to detect risks and possible hazards when
handling the motors.
Instruction, Training
The operator will ensure that all users of the motors receive the prescribed course of instruc-
tion and the required training. If the operator is insufficiently trained or qualified then their
safety is not guaranteed.
If insufficiently trained or non-qualified users work on the motors then there is a risk of injury
or the risk of high damage to property.
2.6.2
Authorised persons
Work on the motors may only be carried out by authorised persons.
Persons are authorised who:

• have read and understood the safety instructions
• have the prescribed qualifications
• have completed the appropriate course of training for the product.

EMWB accepts no liability for damage to property and injuries to persons caused by non-
authorised persons.
Work on ex-protected motors must only be carried out by trained, authorised personnel.
18
80000203A 11.2021
2 Safety
2.7

To protect the personnel, the general regulations described in the following sections for
working at and around the motors apply.
Notice of special dangers/hazards is given in the appropriate chapters!
2.7.1
Work clothes
i CAUTION!
Incorrect work clothes and missing protective equipment. Crushing and entanglement
of body parts!
Wear tight-fitting clothing!
Bind together long hair and wear a hair-net or cap!
Always wear personal protective equipment during work!
2.7.2
Cleanliness at the workplace
i CAUTION!
There is a risk of tripping or slipping if the workplace or the area around it is disorderly.
There must be no objects lying around on the ground!
Any escaped fluids must be wiped up immediately!
2.7.3
Electrical danger
i DANGER!
Motors have live parts - risk of electric shock! If the motor is used improperly, incor-
rectly or is not sufficiently maintained, then this may result in death, severe bodily inju-
ries or damage to property.
Never dismount covers and make sure that any dismounted covers are reinstalled before
putting the motor back into operation.
Before any adjustments are made and before any maintenance and repair work, switch off the
motor at the main switch and take effective measures to prevent reconnection using cable tie
or a padlock!
Only allow work at electrical system parts to be carried out by authorised expert personnel!
Observe the electrical connection rating specifications. Only operate the motor with suitable
safety circuits/motor overload protection.
80000203A 11.2021
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2 Safety
2.7.4
Danger from rotating parts
i WARNING!
Risk of entanglement in the rotating parts!
Removal of covers, incorrect use of motors, incorrect operation or insufficient maintenance
can result in death, severe bodily injuries or damage to property.
Before operation, always check to make sure that all safety equipment/devices, especially the
covers, are attached and functioning correctly!
Always operate the motor correctly!
Before removing the protective equipment and covers, always switch off the system at the
main switch and take effective measures to prevent reconnection!
Loose shaft ends must always be secured!
2.7.5
Danger from hot surfaces
i WARNING!
Risk of burning when touching hot surfaces on motors!
Never touch the surfaces of motors during operation or shortly after operation. Touching top
surfaces may result in severe burns to the skin!
Before any adjustments are made and before any maintenance and repair work, make sure
that parts of the motor that could become hot during operation have cooled down sufficiently!
20
80000203A 11.2021
3 Description
3

3.1

3.1.1
Correct use
The motors are intended for use as industrial drive systems and must not be used for dissim-
ilar functions without prior consultation with the manufacturer (for exact specifications, see
chapter «13
Explosion-protected standard motors»).
They accord to the harmonised standards of series EN/IEC 60034. Use in Ex-area is prohib-
ited except when the identification of the rating plate explicitly permits this.
Other usages are only possible after contractual agreement with EMWB. Each and every
usage of the motor that does not accord to the details in chapter «5
Assembly» is deemed an
improper usage.
Correct usage also includes observance of the installation, startup, operation and mainte-
nance instructions stipulated by EMWB.
If safe operation of the system is no longer ensured, it must be put out of operation and
secured against unintentional startup. This may occur:

• when there is visible damage to the system or its components
• when there are defects
• when storage was in unfavourable conditions
• after there has been high stress during transport.

3.1.2
Incorrect use
Not intended for use in applications other than industrial applications, or when other,
increased requirements are made (e.g. contact with children).
Motors are not intended for use outside of the parameters indicated in chapter «13
Explosion-
protected standard motors».
3.1.3
CE-mark
Low-voltage machines are incomplete machines for installation in machines within the
meaning of the current machinery directive. Commissioning is forbidden until conformity of
the end product to this directive is determined (observe EN 60204-1!).
80000203A 11.2021
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3 Description
3.2

Check the delivery for completeness
The motors are put together according to the requirements of the individual customer.
After receiving the delivery, check immediately to make sure that it agrees with the accompa-
nying documents. EMWB does not provide any warranty for deficiencies that are subse-
quently claimed. A claim should be made for:

• visible transport damages; to be made immediately with the transport company.
• visible deficiencies or incomplete delivery; to be made immediately with EMWB.

The operating and maintenance instructions are part of the delivery. They must be kept at a
suitable location.
3.3

3.3.1
Version
Motors from this series are squirrel cage rotor three-phase drives. The motors can be deliv-
ered as single-rotation models with various efficiency factors or as dual-speed motors for
several speeds.
Standard degree of protection of the motors is IP55. Consultation with the manufacturer is
required if higher degrees of protection are necessary.
The motors are produced individually in accordance with the motor data sheet or order
acceptance. The delivered model may therefore deviate slightly from the specifications in this
manual. The details in the motor data sheet or in the delivered shopping documents are
binding.
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3 Description
3.3.2
Cooling
Cooling methods
The motors are produced as self-ventilated (fan blade on the motor shaft), forced-ventilated
and unventilated models (lying in the air current) in accordance with IEC 60034-6.
Self-ventilated
The motor is cooled by a fan blade fixed onto the drive shaft (non-driving end). The air is fed
over the motor by the fan cover (cooling method IC 411). The maximum air temperature
(ambient temperature) is 40°C.
To ensure perfect ventilation, always observe the minimum clearances in accordance with
chapter «3.3.3
Clearances between attaching parts».
Forced ventilation
For special operation conditions, the motors can be fitted with a forced ventilation (cooling
method IC 416). This has its own drive and functions independent of the motor.
80000203A 11.2021
23
3 Description
Unventilated
For special operation conditions, the motors can be fitted without ventilation (cooling method
IC 410).
Influence of the speed and frequency of operation on the cooling
If the speed is controlled by a frequency converter or another method of regulation, then suffi-
cient cooling may no longer be ensured, depending on the installation location.
Depending on the application, the temperature must be monitored by sufficient means (e.g.
PTC thermistor).
There is a higher current flow for a short time caused by switch-on; this increases the heat on
the winding and the rotor. If a motor is switched on and off frequently without there being
appropriately long idling or operating phases, then the temperature may increase too much.
The winding may be damaged due to thermal overload!
Consultation with EMWB is always required if the motor is to be operated with a frequency
converter.
Special regulations apply for operation with a frequency converter in areas exposed to
explosion hazards (see «9.3
Operation at the frequency converter»).
24
80000203A 11.2021
3 Description
3.3.3
Clearances between attaching parts
Prevent insufficient clearances to other machine parts or to covers and walls to ensure suffi-
cient cooling air reaches the motor. There is a risk of motor overheating is there is insufficient
cooling. A permanently high temperature also impairs the lifetime of the motor.

BG X
[mm] BG X
[m m] BG X
[m m] BG X
[m m]
56 M 20 100 L 39 180 M 70 280 S 110
63 M 22 112 M 44 180 L 70 280 M 110
71 M 24 132 S 50 200 L 80 315 S 110
80 M 26 132 M 50 225 S 100 315 M 110
90 S 28 160 M 60 225 M 100 355 M 120
90 L 28 160 L 60 250 M 100 355 L 120

3.3.4
Design of the bearing
The motors contain bearings with lifetime grease lubrication.
The amount of grease in the bearing normally suffices for 20,000 operating hours or 36
months under normal operating conditions.
If any revision is made to the motor then the bearing must be replaced.
Bearing method and bearing types
The motors are fitted with commercially available rolling-contact bearings. They are appropri-
ately dimensioned and noise-tested. Special low-vibration and low-noise bearings can be
supplied on request.
For bearing types, refer to «10.8.1
Bearing method and bearing types»
For motors with groove ball bearings, the fixed bearing is on the drive end. The floating
bearing, which is used to balance linear extension, is installed on the non-drive end.
80000203A 11.2021
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3 Description
3.3.5
Mechanical load values of the motor shaft
The radial loads using standard bearings are listed in the following table. They are designed
for a lifetime of 20,000 hours at a frequency of 50 Hz. To achieve the same lifetime at a
frequency of 60 Hz, the values must be decreased by 6%. The values apply for horizontal and
vertical positioning of the motor, and are valid at clearance x from the shaft collar.
X
FR
FA
E
Table for radial load (FR)
BG
Speed
3000 min-1
1500 min-1
1000 min-1
750 min-1
x = 0.5 E
x = 0.5 E
x = 0.5 E
x = 0.5 E
[N]
[N]
[N]
[N]
56
255
300
340
380
63
365
460
520
580
71
370
460
520
580
80
610
770
880
990
90
650
820
940
1050
100
890
1160
1310
1470
112
890
1110
1280
1430
132
1440
1780
2100
2310
160
1390
1780
2050
2350
180
1980
2630
3080
3420
200
1880
2440
2990
3320
225
3800
5500
5860
6160
250
4700
6000
6420
6750
280
5000
6200
7440
7810
315
5140
6300
7550
7930
355
5300
6390
7700
8080
26
80000203A 11.2021
3 Description
The maximum forces listed apply for horizontal mounting.
Higher loads can result in damage to the motor shaft or the bearing!
The sum of the effective forces is relevant for motors with two drive shaft ends!
NOTICE!
The stipulated values only apply to a fixed bearing at the driving end and for horizontal
mounting of the motors. Simultaneous axial and radial load on request.
Table for axial load (FA)
BG
Speed
3000 min-1
1500 min-1
1000 min-1
750 min-1
[N]
[N]
[N]
[N]
56
220
290
340
380
63
290
390
450
520
71
300
400
470
530
80
570
760
890
1010
90
600
810
960
1080
100
830
1120
1320
1500
112
820
1100
1300
1470
132
1300
1710
2060
2320
160
1300
1750
2090
2390
180
1830
2570
2980
3380
200
1760
2370
2900
3280
225
3300
5100
5800
6650
250
4200
5600
6500
7400
280 S
3900
6000
7300
8300
280 M
3800
5900
7200
8200
315 S
3700
6000
7150
8140
315 M
3600
5900
7100
8000
315 L
3500
5700
6770
7700
355M
3420
6000
7080
8000
355L
3400
5800
6750
7800
80000203A 11.2021
27
3 Description
3.3.6
Balance quality
Standard motor delivery from the EMWB is with a half-key balance in accordance with
DIN 60034-14.
The motors are designed in vibration level A.
3.3.7
Torque transmission
Shaft components must only be assembled/disassembled correctly using suitable tools.
Always make sure that the rolling-contact bearing is not damaged.
If a belt-drive drives the motor, make sure that the belt is not too tight (forces on the motor
bearing).
Attachments must be carefully and dynamically balanced before assembly.
The shaft components must be secured against releasing or moving independently.
The maximum axial and radial forces in accordance with the technical motor data sheet
must not be exceeded!
3.3.8
Design of the winding
The stator windings are designed as standard according to insulation class F. The highest
permitted constant temperature of the threshold temperature is 155°C, in accordance with
insulation class F.
The windings are manufactured from high-quality enamelled wire, suitable surface insulation
material and impregnation material. The insulation system of the motor windings has a high
level of mechanical and electrical strength and guarantees a long lifetime.
The insulation is suitable up to an absolute humidity of 30 g water per m3. Bedewing of the
winding must be prevented. Please check for higher values!
Optionally the windings can be designed with the following winding shields:

• PTC
• PT100
• KTY
• NTC
• Switching contact NCC / NOC

Additional possible designs:

• installation of stationary heater
• insulation for tropics
• increased moisture guard
• winding in class H

28
80000203A 11.2021
4 Application engineering
4

4.1

i WARNING!
Incorrect fixture during transport. Death, severe bodily injuries or damage to property
may result.
The motors may only be transported and lifted at their lifting hooks in a position appropriate
to their model; otherwise, they will tilt over or they may slide into the lifting device.
Use all the lifting hooks on the motors.
Securely tighten lifting hooks that are screwed in.
Screw the eye bolts on up to their contact surfaces.
If required, use suitable and sufficiently sized transport means such as lifting straps (EN 1492-1)
and lashing straps (EN12195-2)
Remove and store any existing transport locks just before commissioning. The transport locks
must be re-used for any additional transport.
The motors are packaged differently depending on the transport distance and the their sizes.
Observe the symbols attached to the packaging.
80000203A 11.2021
29
4 Application engineering
4.1.1
Symbols on the packaging
The following symbols are on the packaging:
Arrows point upwards!
Do not overturn!
Fragile!
Place down carefully! Do not drop!
Sensitive to moisture!
Protect from moisture!
Hook here!
Fix the chains for loading onto a crane at the positions marked.
Centre of gravity!
Risk of injury from falling load!
When lifting or transporting with a fork-lift or similar transport device, ob-
serve the centre of gravity of the load!
30
80000203A 11.2021
4 Application engineering
4.2

4.2.1
Storing outdoors
When storing outdoors, the following points in particular must be observed:

• When necessary, damages to the packaging must be repaired before storing.
• Lift the motor onto a stable surface with a minimum height of 100 mm from the ground to
  prevent rising damp and to ensure good air circulation underneath.
• The storage location must be vibration-free. If this cannot be ensured, the motor must be
  placed onto suitable damping elements.
• Stable temperature conditions in the range of 10°C to 50°C must be ensured.
• Temperatures below the dew point should be avoided to prevent formation of damp within
  the motor. If this is not possible, the motor must be protected with a stationary heater.
• The motor must be covered so that is it completely protected from damp and weather in-
  fluences.
• Lids and covers must not touch the surfaces of the motor.
• The motor must be protected from insects and small animals.

4.2.2
Storing indoors
When storing indoors, the following points in particular must be observed:

• Lift the motor onto a stable surface with a minimum height of 100 mm from the ground to
  prevent rising damp and to ensure good air circulation underneath.
• The storage location must be vibration-free. If this cannot be ensured, the motor must be
  placed onto suitable damping elements.
• Stable temperature conditions in the range of 10°C to 50°C must be ensured.
• Low humidity (<75%) must be ensured.
• Temperatures below the dew point should be avoided to prevent formation of damp within
  the motor. If this is not possible, the motor must be protected with a stationary heater.
• The ambient air must be clean, dust-free and free of corrosive gases.
• The motor must be protected from insects and small animals.

4.2.3
Short-term storage (= 2 months)
When storing for a short period, no special measures are required apart from those for storing
outdoors or indoors.
80000203A 11.2021
31
4 Application engineering
4.2.4
Long-term storage (> 2 months)
The following must be observed in addition to the measures described for "storing outdoors"
and "storing indoors":

• Check the paint condition every 3 months. If paint damages are determined, clean the
  corroded areas and apply a new coat.
• Check the condition of the anticorrosion coating on bare metal surfaces every 3 months.
  If corrosion is visible, finish-grind blank areas with fine sand paper and re-treat with anti-
  corrosive.
• Once per year, the motor must be operated for at least 30 minutes at the rated frequency
  and rated voltage to prevent standstill damages to the bearing.
• The service life of the grease is reduced when the motor is stored for longer periods.
• Closed bearings must be replaced after a max. storage time of 48 months.
• If condensation water enters the bearing then it must be replaced because condensate
  results in a change of consistency of the bearing grease.
• The insulation resistance must be checked before each startup.

4.2.5
Corrosion protection
Bare metal surfaces
Bare metal surfaces, and especially shafts, must always be treated with an anticorrosion
coating. If corrosion is visible, remove it with fine sand paper and re-treat with anticorrosive.
Paintwork
If the paintwork is damaged due to incorrect handling of the motor, the location of the damage
must be cleaned professionally and reworked.
When selecting a paint, please make sure that it is compatible to the paint already used.
32
80000203A 11.2021
4 Application engineering
4.3

Electromagnetic harmonics that can reach very high frequencies occur when there are fast
current changes. Such interferences occur especially in case of fast switch-ons and switch-
offs, or when torque-changes are strong (e.g. at the piston compressors), and they extend
across a wide frequency band. Such harmonics are an unacceptable mains interference
and result in undue emitted interferences.
Frequency converter

• When operating at a frequency converter, interference signals of various strengths can
  occur, depending on the version of the frequency converter.
• Always observe the EMC instructions of the manufacturer of the frequency converter.
• Noise voltages on the lines of the installed sensors (e.g. PTC resistors) can occur due
  to interference from the frequency converter.
• Effective shielding connects the machine feed line extensively and conductively at the
  metal connection box of the motor (with EMC screw connections).
• Avoid exceeding the thresholds as per EN/IEC 61000-6-3 in the drive system, com-
  prised of the motor and the frequency converter.

When used correctly, motors within a closed enclosure meet the requirements of the current
directive for electromagnetic compatibility.
Noise immunity
In principal, noise immunity requirements as per EN/IEC 61000-6-2 are met by the motors.
For motors with installed sensors (e.g. PTC resistors), the operator himself must ensure suffi-
cient noise immunity, e.g. by selecting a suitable sensor signal line (with shield when appro-
priate) and analyser.
80000203A 11.2021
33
5 Assembly
5

5.1

i WARNING!
Touching live parts on motors may result in severe or fatal injuries!
Erection, commissioning and maintenance may only be carried out by authorised experts. The
instructions of the manufacturer and the local valid legal requirements, ordinances and such-
like must be observed during the erection and commissioning of the equipment.
i WARNING!
Motors have hot surfaces. Danger of burns to hands and arms!
Allow the motor to cool down before working at it.
Only remove covers after the motor has cooled down.
The motor may only be operated by trained experts.
Lines must not be attached to the machine housing.
i CAUTION!
Climbing on motors or on the complete system results in injuries from falling!
The dimensions of the fixing flange and other attachments does not allow for any additional
load such as, i.e. climbing onto the system.
Observe the technical data on the shields on the machine housing.
34
80000203A 11.2021
5 Assembly
5.2

The motor must be tightly screwed onto a solid and vibration-free foundation using well-
anchored foundation blocks.
Firmly tighten or remove screwed-on lifting eyes after erecting the motor.

• When the motors are arranged vertically, special attention must be paid to stable footing
  during assembly. Use the existing lifting eyes and lifting straps (DIN EN 1492-1) when nec-
  essary, and/or lashing straps (DIN EN 12195-2) to stabilise the motor's position.
• At the shaft end, prevent penetration of fluid upwards along the shaft!
• Prevent foreign bodies from falling into the fan cover! When erecting the motor vertically
  with the shaft end pointing downwards, attach a protective cover.
• Clean metallic bright surfaces coated with anticorrosion agent (required for perfect instal-
  lation and/or erection of the motor) with suitable cleaning agent!
• Do not block ventilation! Also take the pre-warmed exhaust air from adjacent units into
  consideration!
• Avoid long-term effects of weather (rain, snow, ice and even dust). When using or storing
  the motors outdoors, protect them with appropriate covers from the influences of weather.
• Do not exceed the permitted axial and radial forces!
• The temperature class of the motor indicated on the rating plate must be the same or
  higher than any flammable gases that may occur.
• Shocks to the drive shaft must be avoided at all times!

5.3

When mounting on the wall or ceiling, the fixture must be on solid beams made of profiled iron
sheeting. Metal foundations should have a protective anticorrosion layer.
Transmission of vibration and noises can be avoided by using rubber buffers. Only use suit-
able materials in perfect working order.
When fixing the motor, make sure that any condensation water holes are at the lowest point.
The plug screws of these condensate holes must be removed.
80000203A 11.2021
35
5 Assembly
5.4

NOTICE!
Damage to property caused by penetration of solid bodies or fluids into the ventilation
or caused by covering or blocking the air inlets.
Do not block ventilation!
Avoid direct sucking-in of preheated exhaust air from adjacent units.
Suitable measures must be taken to prevent foreign bodies and fluids from entering the
vertical mounting form where air enters from the top.
At the shaft end, prevent penetration of fluid upwards along the shaft!
For additional information on cooling, see «3.3.2
Cooling» and «3.3.3
Clearances between
attaching parts».
5.5

• Shaft add-on parts must only be assembled/disassembled correctly using suitable tools.
  Always make sure that the rolling-contact bearing is not damaged.
• Shaft add-on parts must be carefully balanced before mounting them. Avoid the use of
  adjusting screws attached on one end. Standard motor delivery from the manufacturer is
  with a half-key balance in accordance with EN 60034-14.
• Shaft add-on parts must be secured against releasing or moving themselves.
• For belt drives, make sure that the belt is not too tight (forces on the motor bearing). Tight-
  en the belt in accordance with the manufacturer's specifications.
• Rotating parts must never be openly accessible and must be secured by suitable clad-
  ding.
• Nonobservance of the type of balance results in vibrations that have a damaging effect on
  the bearing and motor parts.
• The conductance of the belt for areas exposed to explosion hazards must prevent elec-
  trostatic charging.
• Couplings or belt pulleys must be assembled using a suitable mounting device. The motor
  shaft and the driven shaft must be aligned to each other exactly. Misalignments result in
  vibrations or even in damages to the bearing. When using belt pulleys, make sure that no
  unacceptable radial forces act on the bearing. For drives with several V-belts, motors with
  reinforced bearings may have to be used.

36
80000203A 11.2021
5 Assembly
5.6

NOTICE!
Damages caused by knocks to the drive shaft.
Avoid knocks to the drive shaft.
Supplementary documents will be supplied when required for special measures, depending
on the model.
Couplings or belt pulleys must be assembled using a suitable mounting device. When using
belt pulleys, make sure that no unacceptable radial forces act on the bearing.
5.7

NOTICE!
Damages caused by knocks to the drive shaft.
Avoid knocks to the drive shaft.
Suitable equipment/apparatus must be used when disassembling drive elements.
80000203A 11.2021
37
6 Electrical connection
6

6.1

i WARNING!
Motors have live parts - risk of electric shock!
Have all work carried out only by qualified experts when the motor is at standstill.
Switch off (deenergize) the motor and auxiliary circuits and take effective measures to prevent
reconnection.
Before commencing work, establish a safe protective conductor connection to protect from
contact voltage.
The motors operate in accordance with EN 60034-1 with mains voltage fluctuations of up to
±10% and/or frequency fluctuations of up to ±2%. The network data must agree with the
voltage and frequency specifications on the rating plate. Never exceed the thresholds!
Connect in such a way that a permanent, safe electrical connection is ensured (no protruding
wire ends); use the assigned cable-end fittings (e.g. cable lug, cable end sleeve).
Establish the electrical connection in accordance with the delivered electrical schematics.
Establish all connection lines as per EN/IEC 60204-1.
The following required details for the connection are stipulated in the technical data:

• Direction of rotation.
• Number and arrangement of the terminal boxes.
• Wiring and connection of the winding.

38
80000203A 11.2021
6 Electrical connection
6.2

6.2.1
Y, D, Y/D
The valid connection diagram is in the terminal box of every motor delivered by the manu-
facturer. If anything is unclear or in case of modifications, contact with EMWB is recom-
mended.
The diagrams for the types of connection most-used in practice are contained in the following.
Normally, 6 connection terminals and 1 ground terminal are in the terminal box.
The connection diagrams for the delta and star connection are as follows:
Volt ?
Volt Y
1 speed
W2
U2
V2
W2
U2
V2
1 terminal board: 6-pin
U1
V1
W1
U1
V1
W1
Startup: Direct ?, Y oder Y/?
L1
L2
L3
L1
L2
L3
Wiring: ? or Y
Volt
lower speed
2 speeds,
2 separate windings
min

• 11U

1V
1W
1 terminal board: 6-pin
L1
L2
L3
high speed
2U
2V
2W
min

• 1
  Startup: both speeds direct

L1
L2
L3
Wiring:
both speeds Y-internal
80000203A 11.2021
39
6 Electrical connection
Volt
2 speeds
2 separate windings
lower speed
1U
1V
1W
min

• 1
  1 terminal board:
  9-pin

L1
L2
L3

2W2
2U2
2V2
high speed
Startup: lower speed: direct
min

• 1
  high speed: direct or Y/?2U1

2V1
2W1
lower speed Y-internal
L1
L2
L3
Wiring:
high speed ?
Volt ? | ?
2 speeds
2 separate windings
1W2
1U2
1V2
lower speed
2 terminal boards:
6-pin
min

• 1

Startup: both speeds: direct or Y/?

1U1
1V1
1W1
L1
L2
L3
both speeds: ?
Wiring:
2W2
2U2
2V2
high speed
min

• 1

2U1
2V1
2W1
L1
L2
L3
Volt ? | YY
Dahlander
lower speed
2 speeds
1 tapped winding

• 1

1W
1U
1V
min
1 terminal board:
6-pin

L1
L2
L3
high speed
Startup: both speeds: direct
2U
2V
2W
min

• 1
  Wiring:
  lower speed: ?

L1
L2
L3
high speed: YY
Name of connection terminal addition element (winding shield/heating)
Name
Element
Function
1TP1 / 1TP2
Low-temperature conductor (PTC)
Winding shield
1TB1 / 1TB2
Bimetal contact (NCC)
Winding shield
1TM1 / 1TM2
Bimetal contact (NOC)
Winding shield
1R1 / 1R2
KTY or PT
Winding shield
1TN1 / 1TN2
High-temperature conductor (NTC)
Winding shield
1HE1 / 1HE2
Heater
Stationary heater
1BA1 / 1BA2
AC brake
Brake
1BC1 / 1BC2
DC brake
Brake
Names and numbering as per EN 60034-8
40
80000203A 11.2021
6 Electrical connection
6.3

i DANGER!
Motors have dangerous voltages. If the motor is not deenergized there is the risk of
electrical shock.
When working at open junction boxes, the motor must not be connected electrically.
NOTICE!
Damage to property at the junction box.
Make sure that the components in the inside of the junction box, e.g. terminal board, cable
connections, are not damaged.
There must be no foreign bodies, dirt or damp in the junction box.
Close entry points with o-rings or suitable flat seals, and close the junction box itself both dust
and watertight using the original seal.
Observe the correct tightening torques for cable glands and other screws.
Secure shaft keys for test operation without drive elements.
The junction box must be closed dust and watertight!!
80000203A 11.2021
41
6 Electrical connection
6.4

6.4.1
Electrical connections - terminal board connections
Thread Ø
M 3.5
M 4
M 5
M 6
M 8
M 10
M 12
M 16
[Nm]
min.
0.8
0.8
1.8
2.7
5.5
9
14
27
max.
1.2
1.2
2.5
4
8
13
20
40
6.4.2
Cable glands
Avoid damaging the cable sheath!
Adjust the tightening torque to the cable sheath material!
For tightening torques of cable glands made of metal and plastic for direct attachment to the
motor, as well as for other screw connections (e.g. reductions), the appropriate torques as
listed in the table must be used.
Metal
Plastic
Clamping range in O-ring
[Nm]
[Nm]
[mm]
Ø in [mm]
Standard

• 30°C...100°C

M 12 x 1.5
8
1,5
3.0 ... 7.0
1.5
M 16 x 1.5
10
2
4.5 ... 10.0
1.5
M 20 x 1.5
12
4
7.0 ... 13.0
1.5
M 25 x 1.5
9.0 ... 17.0
2.0
M 32 x 1.5
18
6
11.0 ... 21.0
2.0
M 40 x 1.5
19.0 ... 28.0
2.0
M 50 x 1.5
20
26.0 ... 35.0
2.5
M 63 x 1.5
34.0 ... 45.0
3.0
42
80000203A 11.2021
6 Electrical connection
6.5

Grounding conductors are obligatory for safety reasons and must only be connected to
their specially marked terminal!
The ground-conductor cross-section of the motor must comply with EN IEC 600034-1.
The installation regulations, e.g. according to EN/IEC 60204-1, must also be observed.
There are two fundamental ways of connecting a ground conductor to the motor:

• Internal grounding with connection in the junction box at the intended and correspond-
  ingly marked location.
• External grounding with connection at the stator at the intended and correspondingly
  marked locations.

6.5.1
Ground cross sections
The ground cross sections must be selected as follows (as per EN 60034-1):
For other cross sections of live conductors, the minimum cross section of the ground
conductor must be at least equivalent to those of the live line for conductor cross sections up
25 mm2.
Cross section of ground or earthing conduc-
Cross section of live conductor [mm2]
tor [mm2]
4
4
6
6
10
10
16
16
25
25
35
25
50
25
70
35
95
50
120
70
80000203A 11.2021
43
6 Electrical connection
6.6

Before closing the junction box / connecting base of the machine housing, check the
following:

• Electrical connections in the junction box are established as per the specifications in the
  previous sections and tightened at the correct torque.
• Keep to the air gaps between non-isolated parts:
  3.5 mm up to 400 V, 5.5 mm up to 660 V
• Avoid protruding wire ends.
• Connect the motor as per the stipulated direction of rotation.
• The inside of the junction box must be kept clean and free of line remains.
• Check all seals and sealing faces for damages, and keep them clean.
• Unused openings in the junction boxes must be properly plugged.

44
80000203A 11.2021
7 Optional accessories
7

7.1

7.1.1
Safety instructions
i DANGER!
Brake motors have dangerous voltages. if the motor is not switched off (deenergized),
then death or severe injuries may be the consequence.
Maintenance and control work may only be carried out when the motor is deenergized!
The standard degree of protection of the brake motors is IP 55. Consultation with the manu-
facturer is required if higher degrees of protection are necessary.
i WARNING!
Explosion danger; brake motors are not suitable for explosive environments. Death,
severe bodily injuries and damage to property may result.
The brake motors must never be used in areas exposed to explosion hazards.
The brake motor is a combination of an IEC standard or special motor and an electromag-
netic, spring-closed single disk brake. They are intended for use in industrial drive systems
and must not be used for any other function without first contacting the manufacturer.
No changes must be made to any of the production facilities except those expressly listed in
this manual.
Not to be used in wet running (water or oil). If in contact with water, only use a rust-resistant
flange and endshield. Request additional corrosion protection when ordering.
When hoisting gear is used, please note that when deenergized, generator operation can
occur in reverse-gear machines. In service mode, always support the loads.
Do not clean the brake using flammable solvents.
Ensure that the brake surface has sufficient ventilation or cooling.
Check the operational reliability of the brake at regular intervals.
80000203A 11.2021
45
7 Optional accessories
7.1.2
Description of brake motors
At standstill, the motor and the brake are deenergized. The pressure springs (4) in the magnet
body (1) press the armature disk (2) that is moved axially onto the brake rotor (3). This is
pressed against the braking surface of the endshield (5). The adjusting sleeve (6) ensures
correct space between the magnet body (1) and the endshield (5). The brake torque is gener-
ated by a friction locking connection.
Applying a direct voltage to the excitation winding in the magnet body generates a magnetic
field. The magnetic force generated acts on the armature disk and attracts it via air gap "a"
against the spring force of the pressure springs to the magnet body. The brake rotor is
released and the braking action is cancelled.
4
1
2
6
5
3
7.1.3
Braking power
The type of application and the relations arising from the motor torque [MN] and the braking
torque [MB] must be considered when selecting the brakes.
Overall size
Small brake
Medium brake
Large brake
Braking Braking
Braking
Brake type
torque MB Brake type
Brake type
torque M
torque M
B
[Nm]
B
[Nm]
[Nm]
56
FDB 08
5
63
FDB 08
5
71
FDB 08
5
FDB 10
10
80
FDB 10
10
FDB 13
20
90
FDB 10
10
FDB 13
20
FDB 15
40
100
FDB 13
20
FDB 15
40
FDB 17
60
112
FDB 13
20
FDB 15
40
FDB 17
60
132
FDB 17
60
FDB 20
100
FDB 23
150
160
FDB 20
100
FDB 23
150
FDB 26
250
180
FDB 23
150
FDB 26
250
200
FDB 23
150
FDB 26
250
FDB 30
400
On request from size 225.
46
80000203A 11.2021
7 Optional accessories
7.1.4
Maintenance of the brake
In normal operation, the brake can be considered maintenance-free. When switching opera-
tions are frequent, air gap "a" and the concomitant wear to the brake must be checked regu-
larly.
On reaching the value "amax", the value must be readjusted to "arated".
Measuring the air gap

• Procedure:
• Remove the cover.
• Check air gap "a" with a feeler gauge at a minimum of 3 locations.

If value "amax" is reached then readjustment to "arated" must be made (see Table).
08
10
13
15
17
20
23
26
30
FDB
[5 Nm]
[10 Nm]
[20 Nm]
[40 Nm]
[60 Nm]
[100 Nm]
[150 Nm]
[250 Nm]
[400Nm]
arated +0.1
0.2
0.2
0.3
0.3
0.3
0.4
0.4
0.5
0.5
amax
0.6
0.7
0.8
0.9
1.0
1.1
1.1
1.2
1.2
80000203A 11.2021
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7 Optional accessories
Setting air gap "a"

• Procedure:
• Remove cover (1).
• Release the retaining ring (2), dismount the vane (3).
• Unscrew the bolts (4), release the cable in the terminal box (polarity insignificant).
• Adjust the air gap (a) as per the table by screwing the sleeve bolt (5) into the magnetic part
  (6).
• Tighten the bolts (4).
• Check air gap (a) with a feeler gauge at a minimum of 3 locations.
• Establish the electrical connection.
• Mount the vane (3), insert the retaining ring (2).
• Mount the cover (1).

7.1.5
Electrical supply
Power supply
Direct current is required to operate the electromechanical safety brake. The direct current
brake coil is normally connected via a rectifier installed in the terminal box. Direct power
supply using a battery or at the DC system is also possible.
48
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7 Optional accessories
Brake coil data
Brake type
Core coil
Permissible Braking torque
Coil resistance Coil power at Coil current at voltage range
at 20°C
rated voltage
rated voltage
[V, DC]
[V, DC]
[Nm]
[Ohm] ±5%
[W]
[A]
24
19-28
21
27
1.14
FDB 08
102
85-133
5
340
31
0.30
195
162-236
1475
26
0.13
24
19-28
16.7
34
1.44
FDB 10
102
85-133
10
271
38
0.38
195
162-236
1070
36
018
24
19-28
14
41
1.71
FDB 13
102
85-133
20
228
46
0.45
195
162-236
990
38
0.20
24
19-28
11.6
50
2.07
FDB 15
102
85-133
40
192
54
0.53
195
162-236
754
50
0.26
24
19-28
8.9
65
2.7
FDB 17
102
85-133
60
174
60
0.59
195
162-236
602
63
0.32
24
19-28
7.2
80
3.33
FDB 20
102
85-133
100
120
87
0.85
195
162-236
464
82
0.42
24
19-28
6
96
4.00
FDB 23
102
85-133
150
109
95
0.94
195
162-236
385
99
0.51
24
19-28
4.6
125
5.22
FDB 26
102
85-133
250
83
125
1.23
195
162-236
300
127
0.65
24
19-28
3.3
175
7.27
FDB 30
102
85-133
400
58
179
1.76
195
162-236
230
165
0.85
Larger brakes on request!
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7 Optional accessories
7.1.6
Half-wave rectifier and bridge rectifier
Half-wave rectifier
The half-wave rectifiers are fitted with high-
quality avalanche diodes. This makes them
much more resistant to voltage peaks.
Switching from the AC side (WS)
Switching from the DC side (GS)
When switching is carried out from the alternat-Switching from the DC side is suitable for all
ing current side, the magnetic field slowly de-
drives that require exact braking, especially
clines and the brake is applied with a delay. The for hoisting gear. The connection is made be-
connection is from the rectifier on the alternating tween the rectifier and the coil. This achieves
current side.
lower running time.
1
Mount the wire jumper (1) instead of the switching contact.
Max. connection Output rectifier Peak off-state
Name of article
Rated current [A]
voltage [V, AC]
voltage [V, DC]
voltage [V, AC]
PME A 400 S
400
180
1.00
1700
PME A 600 S
600
270
1.85
1700
50
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7 Optional accessories
Bridge rectifier
The bridge rectifiers are fitted with high-qual-
ity avalanche diodes. This makes them much
more resistant to voltage peaks.
Switching from the AC side (WS)
Switching from the DC side (GS)
When switching is carried out from the alternat-Switching from the DC side is suitable for all
ing current side, the magnetic field slowly de-
drives that require exact braking, especially
clines and the brake is applied with a delay. The for hoisting gear. Switching is between the
connection is from the rectifier on the alternating rectifier and the coil; this achieves lower run-
current side.
ning time.
1
1
Mount the wire jumper (1) instead of the switching contact.
Max. connection Output rectifier Peak off-state
Name of article
Rated current [A]
voltage [V, AC]
voltage [V, DC]
voltage [V, AC]
PMB A 400 S
400
360
2.00
1700
230
207
2.00
1700
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7 Optional accessories
7.1.7
Switching schematics
Switching from the DC side (GS)
Half-wave rectifier
Example for switching from the
DC side of motors with ?-connec-
tion.
Motor: 3 x 400V AC
Rectifier output: 180V DC
Coil voltage: 162-236V DC
Bridge rectifier
Example for switching from the
DC side of motors with Y-connec-
tion.
Motor: 3 x 400V AC
Rectifier input: Neutral point and
phase 230V AC
Rectifier output: 207V DC Coil
voltage: 162-236V DC
52
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Switching from alternating current side (WS)
Half-wave rectifier
Example for switching from the al-
ternating side of motors with ?-
connection.
Motor: 3 x 400V AC
Rectifier output: 180V DC
Coil voltage: 162-236V DC
Bridge rectifier
Example for switching from the al-
ternating current side of motors
with Y-connection.
Motor: 3 x 400V AC
Rectifier input: Neutral point and
phase 230V AC
Rectifier output: 207V DC
Coil voltage: 162-236V DC
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7 Optional accessories
7.2

Motors can be additionally fitted with incremental encoders. These are installed on the non-
driving side between the brake and the fan blade.
A combination of several options is available on request.
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8

8.1

Rated power (kW)

• Disconnect any cable of the main circuit from their terminals before starting the insulation
  measurement.
• Measure the insulation resistance of the winding against the machine casing when possi-
  ble at a winding temperature between 20 and 30°C. Other values apply for the insulation
  resistance at other temperatures.
• When measuring, wait until the final value for the resistance is reached. This usually oc-
  curs after approx. 1 minute. Read off the insulation resistance.

Thresholds of the insulation resistance for the standard winding
The following table lists the measuring voltage as well as the thresholds for the minimum insu-
lation resistance and critical insulation resistance of the standard winding at 25°C.
Rated insulation voltage UN < 2 kV
Measuring voltage
500 [V]
Minimum insulation resistance for new, 10 MOhm
cleaned or repaired windings
Critical specific insulation resistance af-
0.5 MOhm / kV
ter a longer period of operation

• When measuring at winding temperatures ? 25°C, the measured value must be converted
  to the reference temperature 25°C and compared to the values in the table above.
• For each 10 K temperature increase, the insulation resistance is halved.
• For each 10 K temperature decrease, the resistance is doubled.
• Dry, reconditioned windings have typical insulation resistances from >100 to 2000 MOhm,
  depending on the size of the winding, the model and the rated insulation voltage. If the
  value of the insulation resistance is near to the minimum value then this might be due to
  damp and/or soiling.
• During the operating time, the insulation resistance of the windings may drop to the critical
  insulation resistance due to environmental and operational influences. The critical insula-
  tion resistance at a winding temperature of 25°C is calculated by multiplying the rated in-
  sulation voltage (kV) by the specific critical resistance value (0.5 MOhm/ kV).

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Example:
Critical resistance for rated insulation voltage UN = 400 V:
400 V x 0.5 MOhm / kV = 0.20 MOhm
When the critical insulation resistance is reached or undershot, this can result in damage to
the insulation and to voltage flashovers.

• Contact the manufacturer.
• When the measured value is near to the critical value, check the insulation resistance in
  the subsequent period at shorter intervals.

8.2

Check the following after correct installation and before starting up the system:

• Correct installation and alignment of the motor.
• Motor is connected in the stipulated direction of rotation.
• Agreement of the operating conditions with the intended data in accordance with the rat-
  ing plate.
• Check the bearing temperatures in the models with bearing thermometers during initial
  motor startup. Set the values for warnings and shut-off at the monitoring device.
• Make sure that no speeds higher than those approved on the rating plate are run.
• Check the settings of the drive elements (e.g. alignment and balance of couplings, belt
  forces when driven by belt, force of teeth and tooth backlash when driven by gear drive,
  and the radial and axial play of connected shafts).
• Check that ground and potential equalisation connections have been made correctly and
  check the fixing bolts, connecting elements and electrical connections.
• Remove any lifting eyes that are bolted on after erecting the motor, or the release lock.
• Turn the rotor without any blade rubbing.
• Cover the open shaft end and secure the shaft key from being ejected.
• Check any existing forced ventilators to ensure they have the specified direction of rota-
  tion.
• Check for any impairment to passage of cooling air and perfect function of any existing
  brake.
• Observe the stipulated mechanical threshold speed nmax.

If the design and configuration of the motor requires a special arrangement of the frequency
converter, appropriate details are contained on the rating plate or additional plate.
Additional checks may be required appropriate to the special conditions at the system in
question.
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8 Startup
8.3

8.3.1
Measures to be taken when commissioning
After installation or modifications, the following measures are recommended for a normal
startup of motors:

• Start the motor without a load and allow it to turn idle. Allow the motor to run down before
  switching back on.
• Check mechanical running for noises or vibrations.
• If the motor is not running smoothly, or if it is making abnormal noises, switch off the motor
  and determine the cause as it runs down.
• If mechanical running improves immediately after switching off, then there are magnetic
  or electrical causes. If mechanical running does not improve after switching off, then there
  are mechanical causes: e.g. motor is imbalanced, insufficient alignment, insufficient screw
  connections on the foundation.
• When the motor is running perfectly mechanically, switch on any existing cooling units, let
  the motor run for some time idle, and observe it.
• Load the motor when it is running perfectly. Check motor smoothness, and read-off and
  log the values for voltage, current, and power.
• Monitor and log the temperatures of the bearing, windings etc., until full-load is reached.

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9

9.1

i WARNING!
Network with non-grounded neutral point!
Operation of the motor at a network with non-grounded neutral point is only permissible for
shot periods of time, e.g. until the error is advanced (ground connection of a line,
EN/IEC 60034-1).
i WARNING!
Do not remove covers when the motor is running! Rotating or live parts are hazardous.
Removing the required covers may result in fatal or severe bodily injuries or damage to
property!
If the cover has to be removed, switch off and secure the motor.
Covers that prevent active or rotating parts from being touched or that are required for correct
air guidance must be closed during operation.
i WARNING!
Faults during operation.
Changes to normal operation, e.g. higher power consumption, temperatures or vibrat-
ions, unusual noises or odours, triggering of monitoring devices etc., indicate that there
is a defect. Defects can result in fatal or severe bodily injuries or damage to property!
Contact the maintenance personnel immediately.
In case of doubt, immediately switch off the motor taking into consideration the safety condi-
tions specific to the system.
i CAUTION!
The surfaces of motors reach high temperatures that may result in burns if touched!
Do not touch the casing, or allow it to cool down first.
NOTICE!
Minimum load to cylinder roller bearing.
Always observe the radial minimum load of the cylinder roller bearing. The manufacturer's
specifications must be observed.
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9 Operation
NOTICE!
Risk of corrosion from condensation water. If there are changes to the motor and/or
ambient temperatures, moisture can condense inside the motor.
Formation of condensation water must be avoided at all times.
9.2

To ensure perfect motor cooling, the air paths (air grids, ducts, cooling fins, tubes) must be
kept free of dirt and contamination.
i DANGER!
Risk of explosion! It is forbidden to clean the motors in an explosive atmosphere! Death,
severe bodily injuries and damage to property may result.
Surfaces can statically discharge and trigger discharges that can result in ignitions.
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9.3

9.3.1
General
The motor must be approved by the manufacturer for operation at the frequency converter.
The operating instructions of the frequency converter must be observed. The frequency
converter must be approved for the appropriate output and voltage.
The appropriate standards must be observed (mandatory) for operation with a frequency
converter.
9.3.2
Influence of potential equalisation / circuit continuity
i CAUTION!
If earth currents flow over the bearing area, the bearing and the bearing grease may be
destroyed!
Earth currents must be avoided or suppressed.
To prevent damages to the bearing due to electrical continuity, current-insulated bearings
are normally used on the non-driving side.
If necessary, the motor must be connected by appropriate copper wires / copper strips to the
system to ensure potential equalisation. These wires/strips must be kept as short as possible.
9.3.3
Insulation system thresholds
i CAUTION!
Voltage peaks destroy the insulation system and increase the risk of an electrical shock!
Voltage peaks must be avoided at all times!

• The insulation system is approved for the appropriate operating voltage, and checked ac-
  cordingly.
• The insulation system may be damaged if the frequency converter is not properly set.
• The insulation system may be damaged if the wiring is not carried out correctly.
  NOTICE!

The intermediate circuit voltage must not be more than max. 50% higher than the ope-
rating voltage of the motor. If the intermediate circuit voltage is higher than this, this
may result in an excessive stress to or destruction of the insulation system.
Decrease the intermediate circuit voltage.
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9 Operation
9.4

NOTICE!
Risk of corrosion if stored for longer periods.
When shutting down for more than 12 months, apply corrosion protection, and carry out
conservation, packaging and drying measures.
During longer periods of standstill (> 1 month) operate the rotor at regular intervals, approxi-
mately once per month, put the motor into operation or at least rotate the rotor. Before
switching back on for recommissioning, observe section «8.3
Switching on» . Remove any
installed rotor holding device before turning the rotor.
9.5

Before remedying a fault, read chapter «2
Safety» !
If electrical faults occur when operating the motor at a frequency converter, also read and
observe the operating instructions for the frequency converter.
General faults caused by mechanical or electrical influences are listed in the following tables.
Possible cause
Measure
Bearing running hot
Too much or too little grease on bear-
Optimum lubrication of the bearing
ing
Defective bearing
Replace the bearing
Forces on the motor shaft are too Check the axle alignment and load from the drive
great
Heating of winding
Too much power consumption
Check the power consumption, check the load
Combined ventilation or forced venti-
Check the ventilation and its head space
lation defective
Blocking of the shaft
Defective bearing
Replace the bearing
Driven machine is blocked
Remove the block
Dirt/contamination
Clean the drive system
Motor standstill
Overload
Check the load from the drive
No operating voltage, or voltage too Check operating voltage/fuses
low
Interruption of a phase
Check the winding, check the feed line
Condensation water, moisture
Drain the condensation water, dry the motor and
re-impregnate the winding
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Possible cause
Measure
Motor hum
Interruption of a phase
Check the voltage source, check the winding
Short-circuit in the winding Check the winding
Wear to bearing
Replace the bearing
Incorrect speed
Overload or underload
Check configuration and check the driven machine
Phase interruption
Check the winding, check the feed line
Changes in frequency
Check the frequency or check the frequency con-
verter
Incorrect direction of rotation
Error in the wiring
Check the connection as per the diagram
Vibrations, oscillations
Wear to the bearing and motor imbal-
Check the bearing and replace if necessary
ance or imbalance of driven machine
Check the motor and the driven machine separate-
ly for imbalance
Noises
Wear to the bearing or mechanical Check the bearing and replace if necessary
friction of the motor or the driven ma-
Check the fan, coupling and drive side for signs of
chine
wear
Required power not reached
Check the connection
Check the voltage of all 3 phases (check the
switch-on circuit and fuse protection, exclude any
overload)
Drive system fails on startup
Incorrect start-up behaviour/fuse Check switch-on circuit, smooth starter and power
protection consumption
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10 Repairs
10

i WARNING!
Incorrect work during repairs may result in fatal or severe, irreversible injuries
Before commencing any work at the motors, make sure that the system is correctly switched
off and secured.
In addition to the main circuits, also pay attention to any additional or auxiliary circuits, espe-
cially heating equipment!
Single parts of the motor can reach temperatures above 60°C! Touching them may result in
burns. Check the temperature of the part before touching it.
When cleaning with compressed air, make sure there is suitable offtake and take personal
protection measures (goggles, respiration filter and suchlike)!
Chemical cleaning agent can damage the motor. Always observe the warning instructions and
instructions for use of the manufacturer. Chemical agent must be compatible with the motor's
components, especially the plastic components.
The operating conditions can vary considerably. The stipulated deadlines must be
observed.
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Observe the appropriate construction standards when making any changes or repairs to listed
machines! These machines are marked on the rating plate with the following "Markings".
Confederate States of America
Canadian Standard Association
EMP
Electromagnetic pulse

Nuclear electromagnetic pulse
Explosion protection
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10 Repairs

If the paint is damaged then the paint damages must be touched-up. This ensures corrosion
protection.
Additional information on the correct paint system and on touching-up paint damage is
available from the customer service.
10.3.1
Repainting
i WARNING!
Risk of explosion from improper painting may result in death, severe bodily injuries and
damage to property!
When the paint layer is too thick, it can electrostatically charge. A discharge may occur. There
is also a risk of explosion when explosive mixtures are present at this moment.
If painted surfaces are repainted, one of the following requirements must be met:

• Limit the total thickness of the paint layer according to the explosion group:
• IIA, IIB: total thickness of the paint layer maximum 2 mm.
• IIC: total thickness of the paint layer maximum 0.20 mm for Group II (gas) motors.
• Limit the surface resistance of the paint used:
• IIA, IIB, IIC, III: surface resistance maximum 1 GOhm from Group II and III (gas and
  dust) motors.
• Disruptive voltage maximum 4 kV for explosion group III (only dust).

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10.4.1
General inspection instructions
Safety-relevant instructions
Special consideration should be paid to the required lubrication intervals that deviate from
the inspection intervals, when greased bearings are used.
During inspections it is not normally necessary to disassemble the motors. They only need
to be disassembled when the bearings are replaced.
10.4.2
Initial inspection
Inspection schedule
Initial inspection after installation or repairs to the motor is normally carried out after approx.
500 operating hours, but at the latest after 6 months.
Running the inspection
In operation, check that:

• the electrical values are adhered to.
• the permissible temperatures at the bearings are not exceeded.
• smooth running and running noises from the motor have not worsened.

In standstill, check that:

• no abatements or cracks have occurred in the foundation.

Additional checks may be required appropriate to the special conditions at the system in
question.
Deficiencies determined during inspection must be remedied immediately.
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10 Repairs
10.4.3
Main inspection
Inspection schedule
The main inspection must be carried out after approx. every 16,000 operating hours, at the
latest however after 24 months.
Running the inspection
In operation, check that:

• the electrical values are adhered to.
• the permissible temperatures at the bearings are not exceeded.
• smooth running and running noises from the motor have not worsened.
• check the brakes of the brake motors for perfect function.

In standstill, check that:

• no abatements or cracks have occurred in the foundation.
• the alignment of the motor is within the permissible tolerances.
• all fixing bolts for both mechanical and electrical connections are tightened.
• the insulation resistors of the windings are sufficiently sized.
• lines and insulators are in correct working order and show no signs of discolouration.

Deficiencies determined during inspection must be remedied immediately.
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10.5.1
Maintenance interval
i CAUTION!
Chemical substances in greases and lubricants may cause skin irritation and inflame
the eyes.
Observe the safety instructions of the manufacturer. Immediately wash any affected areas
after coming into contact with chemical substances.
The motors have rolling-contact bearings with grease lubrication.
Run careful and regular maintenance, inspections and revisions to detect and remedy faults
at an early stage before they can result in secondary damages.
The motors are used in very different operating conditions. The stipulated maintenance inter-
vals must therefore be adjusted to the local conditions (dirt, operating frequency, load, etc.).
If there are faults or unusual conditions, an inspection must be run. Such faults could be,
e.g. motor overload, short-circuit, etc.
Preventive maintenance
EMWB recommends the following maintenance intervals to ensure problem-free operation:
Measures
Operating time - Intervals
Deadlines
Initial inspection
After 500 operating hours
At the latest after 6 months
Cleaning
Depending on local level of soiling
Main inspection
Approx. every 16,000 operating At the latest after 24 months
hours
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10 Repairs
10.5.2
Lubrication
The motors are standard-fitted with rolling-contact bearings with permanent grease lubrica-
tion.
The following details must be observed for motors with greased bearings.
Grease
The manufacturer uses the following standard lubricating greases:
a)
For standard groove ball bearings (closed version)
Type:
Multemp SRL
Temperature range:

• 50°C to +150°C

b)
For normal grooved ball bearing and cylinder roller bearings (open version)
Type:
Turmogrease N3
Temperature range:

• 40°C to +180°C

When the bearing is replaced, make sure that the new bearing is greased with the
prescribed grease (see above)!
For motors with local lubrication. make sure that the bearing is regreased using the
prescribed grease (see above).
Consult EMWB for details of relubrication intervals and the appropriate amounts of grease.
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It must be ensured at all times that the motor is kept clean. Also, only dust-free air must be
sucked in as cooling air.
10.6.1
Cleaning the cooling air paths
i WARNING!
Breathing impairment due to dust.
When cleaning with compressed air, make sure there is suitable extraction and that you are
wearing personal protective equipment (goggles, respiration filter, etc.). Observe the instruc-
tions of the manufacturer.
Cooling air paths through which ambient air flows must be cleaned at regular intervals (e.g.
with dry compressed air).
Never point compressed air towards the shaft outlet or machine openings!
To ensure that the flow of cooling air remains unimpeded, fluff, material remains and other
such contamination, especially at the air entrance opening between the fan cover and the
cooling fins of the motor casing, must be removed regularly.
The cleaning intervals depend on the level of local contamination.
10.6.2
Condensation water
If there are changes to the motor and/or ambient temperatures, moisture can condense inside
the motor.
NOTICE!
Risk of corrosion from condensation water. If there are changes to the motor and/or
ambient temperatures, moisture can condense inside the motor.
Formation of condensation water must be avoided at all times.
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10 Repairs

10.7.1
Repair instructions
Motors may only be put into operation by authorised, expert personnel. They must have read
and understood the manual.
i WARNING!
Motors have live parts - risk of electric shock!
Have all work carried out only by qualified experts when the motor is at standstill.
Switch off (deenergize) the motor and auxiliary circuits and take effective measures to prevent
reconnection.
Before commencing work, establish a safe protective conductor connection to protect from
contact voltage.
i CAUTION!
Falling parts of the motor and tools may cause severe injuries!
Depending on their dimensions, parts of the motor may be very heavy. Maintenance or repair
work must be carried out at a suitable location (workshop with appropriate equipment).
If the motor has to be transported, observe the instructions in chapter «4
Application engi-
neering»!
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The motors contain bearings with lifetime grease lubrication or local lubrication. For a perma-
nent grease lubrication, the amount of grease in the bearing normally suffices under normal
operating conditions for 20,000 operating hours or 36 months, depending on which occurs
first. For bearings fitted with a local lubrication unit, the specific relubrication instructions must
be observed.
If any revision is made to the motor then the bearing must be replaced.
10.8.1
Bearing method and bearing types
The motors are fitted with commercially available rolling-contact bearings. They are appropri-
ately dimensioned and noise-tested. Special low-vibration and low-noise bearings can be
supplied on request.
The bearing types are listed in the table below.
BG
Bearing type on driving end
Bearing type on non-driving end
56
6201
6201
63
6202
6202
71
6202
6202
80
6204
6204
90
6205
6205
100
6206
6206
112
6306
6306
132
6308
6308
160
6309
6309
180
6310
6310
200
6313
6313
225
6314
6314
250
6315
6315
280
6317
6317
315
6318
6318
355
6322
6322
For motors with groove ball bearings, the fixed bearing is on the drive end. The floating
bearing, which is used to balance linear extension, is installed on the non-drive end.
When replacing the bearing, exactly the same type must be used! Additional specific
instructions are contained in the data sheet of the respective motor.
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10 Repairs
10.8.2
Lifetime of bearing
Replacement of the bearing is recommended within the scope of preventive maintenance of
groove ball bearings after 16,000 operating hours or after 24 months runtime, depending on
which occurs first.
The lifetime of the grease is reduced if the equipment is stored for longer periods of time. In
case of permanently-lubricated bearings, this results in a reduction to the storage lifetime of
the bearing.
It is recommended that the bearing or grease already be replaced after 12 months storage
time. If the time is more than 4 years then the bearing or grease must be replaced.
10.8.3
Replacing the bearing
If the bearing is not replaced in the manufacturer's factory then the guarantee for the motor
is nullified.
The operating hours are reduced, e.g. when the machine is erected vertically, is subjected
to greater levels of vibration and knocks, is often operated in reversing operation, where
there are higher ambient temperatures or the machine is run at higher speeds, etc.
The bearings can be pulled off from the rotor with a suitable tool.
Before mounting the new bearings, the bearing seatings on the shaft and the bearing seatings
in the flange / endshield must be checked. The bearing seatings must be measured and their
surface quality must be checked (Ra 0.8).
Before mounting the bearings, the rotor shaft must be balanced as per the instructions from
EMWB.
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10 Repairs
The bearings are heated for installation to max. 80°C (final temperature) by an induction unit
and shrunk onto the shaft (see figure below).
Avoid impact effects on the bearings! This could damage the bearings.
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11 Spare parts
11

When ordering spare or repair parts, the exact name of the part as well as details of the motor
type and the serial number must always be provided.

Spare parts
Spare parts are machine parts that can be ordered during production time and up to 5 years
after production has been discontinued.
Repair parts
Repair parts are machine parts that can only be delivered during the active production time
of the motor.
Repair parts are parts that are used for repairs or modifications of the current product.
Delivery commitment for replacement machines and for spare parts after the motors have
been delivered:

• For up to 5 years, EMWB will deliver a comparable motor with respect to mounting dimen-
  sions and function in case of complete failure (may involve changeover to a newer series).
• Spare parts can be delivered for up to 5 years.
• EMWB will provide information on spare parts for up to 5 years, and deliver the necessary
  documents if required.

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12

Protecting the environment and its resources are high priorities in the business objectives of
EMWB. Environmentally-friendly design, technical safety and occupational health are already
deep-seated goals of the company in the development-phase of our products.
The following chapters contain recommendations for environmentally-friendly disposal of the
motor and its components. Local regulations must be observed during disposal.

The motors must be disassembled, or their disassembly must be supervised, by authorised
expert personnel with suitable expert knowledge. Licensed waste management facilities are
suitable for this.

• Procedure:
• Disconnect the electrical connections and remove the cable.
• Remove fluids such as oil, cooling fluids, etc..
• Release the motor from its fixtures.
• Transport the motor to a location suitable for disassembly.

Disassemble the motors according to the typical general procedures of machine construction.
i WARNING!
The motors are comprised of heavy parts. These parts may drop down when being dis-
mantled.
Machine parts must be borne securely or secured against dropping.
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12 Disposal

12.4.1
Components
For the most part, the motors are comprised of recyclable materials (steel, copper and
aluminium).
Separate the components for recycling according to the following categories:

• Steel and iron
• Aluminium
• Nonferrous metal, e.g. windings
• Insulation materials
• Cable and lines
• Electronic scrap

12.4.2
Fluids, lubricants and chemicals
Separate fluids and chemicals for disposal, e.g. according to the following categories:

• Oil
• Grease
• Cleaning agents and solvents
• Paint residue
• Anticorrosion agent

Dispose of separated components in accordance to local regulations or using a waste
management company.
12.4.3
Packaging material

• A waste management company should be contacted if necessary.
• Wooden packaging for transport by sea is made of impregnated wood. Observe the local
  regulations.
• The cling foil on the sealed packing contains aluminium residue. It can be used for energy
  recovery. Dirty cling foil should be disposed of by waste incineration.

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13 Explosion-protected standard motors
13

Work on ex-protected standard motors must only be carried out by trained, authorised
expert personnel.

Example of designation: ATEX (gases)
0158 II 2 G Ex e
IIC T4 Gb
CE marking

Notified body's
identification number

Marking to prevent
explosions (ATEX 95)

Equipment group
Areas of explosive gas atmospheres II

Category
Zone 0 1
Zone 1 2
Zone 2 3

Ex-Atmosphere
Gas G

Explosion protection

Ignition protection category
increasing safety e
non-sparking versions nA

Explosion group
Acetone, Ethane, Benzol, Petrol
II A
Butane, Propane, Methane
Ethylene, Town gas
II B
Hydrogen, Acetylene II C

Temperature classe
Surface limit temperature
450°C T1
300°C T2
200°C T3
135°C T4
100°C T5
85°C T6

EPL Equipment Protection Level
Zone 0 Ga
Zone 1 Gb
Zone 2 Gc
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13 Explosion-protected standard motors
Example of designation: ATEX (dusts)

0158 II 3 D Ex c
t
IIIC T120°C Dc IP65

CE marking

Notified body's
identification number

Marking to prevent
explosions (ATEX 95)

Equipment group (acc. to directive)
Areas of explosive gas atmospheres II
Areas of explosive dust atmospheres

Category
Zone 20 1
Zone 21 2
Zone 22 3

Ex-Atmosphere
combustible dust D

Explosion protection

Ignition protection category
Protection by housing ta

tb
tc

Protection classes
IP5X III A
IP5X III B
IP6X III C

Temperature
Surface limit
temperature Txx°C

EPL
Equipment Protection Level
Zone 20 Da
Zone 21 Db
Zone 22 Dc
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13 Explosion-protected standard motors

Nameplate 1

• Increased safety level Ex e as per EN
  60079-7 for Category 2 and 3 or Zone 1
  and 2 mains operation

Nameplate 2

• Increased safety level Ex t as per EN
  60079-31 for Category 3 or Zone 22
  mains operation or operation with fre-
  quency converter

Nameplate 3

• Increased safety level Ex e as per EN
  60079-7 for Category 2 and 3 or Zone 1
  and 2 operation with frequency converter

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13 Explosion-protected standard motors
Nameplate 4

• Increased safety level Ex e as per
  EN 60079-7 for Category 2 and 3 or
  Zone 1 and 2
  or
• Protected by casing Ex t
  for Category 3 or Zone 22
  operation with frequency converter

Nameplate 5

• Increased safety level Ex e as per EN
  60079-7 for Category 2 and 3 or Zone 1
  and 2
  or
• Protected by casing Ex t
  for Category 2 and 3 or Zone 21 and 22
  operation with frequency converter

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13 Explosion-protected standard motors

If repairs are not carried out by the manufacturer then they must only be carried out by a work-
shop that can prove that is has expert knowledge of the repair and maintenance of ex-
protected drives. EMWB is a recognised inspection authority of an accredited company and
can train repairs workshops.
A written declaration of the work that has been carried out must be submitted on delivery of
a repaired motor.
Furthermore, the motor must have an additional plate with the following details on it:
Repairs plate
1
1 Note on repairs
2 Name and address of the repairs workshop
3 Date of repairs
2
4 Consecutive repairs number
5 Symbols:
3
for repairs
4
5
R
6
for modifications
R
6 Note on EN number
5
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13 Explosion-protected standard motors

• In areas exposed to explosion hazards, additional regulations and instructions apply.
  These must be observed compliant with 1999/92/EG.
• When erecting electrical installations in areas exposed to explosion hazards, observe EN/
  IEC 60079-14 and the appropriate national regulations.

i WARNING!

Motors have live elements - risk of electrical shock!
Have all work carried out only by qualified experts when the motor is at standstill.
Switch off (deenergize) the motor and take effective measures to prevent reconnection. This
also applies to any auxiliary circuits.
Make sure the motor is de-energized.
Before commencing work, establish a protective conductor connection.
Deviations in the power supply from the rated values for voltage, frequency, wave form, and
symmetry increase the level of heating and influence electromagnetic compatibility.
The electrical connection is different from that of standard motors as follows:

• For motors in Zone 1 and 2 (2G or 3G), the electrical connections must be secured against
  twisting.
• Deviations from those of the ratings may result in impermissible increases in the heating
  of the motors. The performance data on the rating plate must not be exceeded.
• Protect the motor in all phases from an impermissible rise in temperature in increased
  safety "e" degree of protection in accordance with EN/IEC 60079-14 using a current-de-
  pendent delayed circuit breaker with phase failure protection and asymmetry detection as
  per EN/IEC 6094, or a similar device.
• Select the overcurrent device with current-dependent, delayed triggering for motors in in-
  creased safety "e" degree of protection in such a way that the triggering time, which is
  taken from the curve of the switch for the ratio between the pull-in current IA and the rated
  current (nominal current) IN of the motor to be protected, is not longer than heating time
  tE of the motor. Ratio IA / IN as well as heating time tE are located on the name plate. Set
  the protection device to the rated current. Use a triggering device that is approved as per
  RL 2014/34/EC (ATEX Guideline).
• The protection device for motors with increased safety "e" type of protection must switch-
  off when the wheels are blocked within the time tE indicated for the respective tempera-
  ture class. Motors for heavy-duty starting must be protected (startup time > 1.7 x tE-time)
  by a startup monitoring circuit as per the specifications of the EC type approval certificate.
  Thermal protection of the machine by direct temperature monitoring of the winding is per-
  mitted if this has been approved and is indicated on the rating plate.

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• For multiple-speed motors, separate, mutually locked protection devices are required for
  each speed step. Equipment with EC type approval certificate is recommended.

The cable glands must have an EC type approval certificate and be approved for the EX zone
in question.

• Any unused openings must be closed using approved plugs.
• Observe the manufacturer's instructions when mounting the cable glands.

13.5.1
Cable glands on Ex-protected motors
The cable glands must have an EC type approval certificate and be approved for the EX zone
in question.

• Any unused openings must be closed using approved plugs.
• Observe the manufacturer's instructions when mounting the cable glands.
• Remove the dust caps or sealing plugs delivered with the motor from the cable gland be-
  fore mounting the line.

13.5.2
Connecting the ground conductor
Ground conductors are obligatory for reasons of safety and must only be connected to the
terminal marked for this purpose!
The ground-conductor cross-section of the motor must comply with EN IEC 60079-0.
The installation regulations, e.g. according to EN/IEC 60204-1, must also be observed.
There are two fundamental ways of connecting a ground conductor to the motor:

• Internal grounding with connection in the junction box at the intended and correspond-
  ingly marked location.
• External grounding with connection at the stator at the intended and correspondingly
  marked locations.

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13 Explosion-protected standard motors
13.5.3
Ground cross sections
For motors used in explosion-protection areas, the following minimum cross sections must
be used for the PE conductor in accordance with DIN EN 60079-0:
Minimum cross sections of concomitant
Cross-section area of phase-
PE-conductor, Sp
conductor of the installation , s[mm2]
[mm2]
s = 16
s
16 < s = 35
16
s > 35
0.5s
Additionally, potential-equalization connecting parts on the outside of the electrical device
must be suitable for connecting a conductor with a minimum cross-section area of 4 mm2. If
these connecting parts are also to be used as a PE connection, then the requirements in
accordance with the table above must be met.
13.5.4
Concluding measures
Before closing the junction box, make sure that:

• the clearance for ex-protected motors (exception: Zone 22 motors) between non-insulat-
  ed parts is adhered to: = 10 mm up to 690 V.
• the minimum creep distance for ex-protected motors (exception: Zone 22 motors) be-
  tween non-insulated parts is adhered to: = 12 mm up to 690 V.

After installation or modifications, the following measures are recommended for a normal
startup of motors:

• Start up the motor without a load; to do this, close the circuit breaker but do not prema-
  turely switch off.
• If the speed is even slower, or to check the direction of rotation, or to make a general
  check, limit the startup-shutdowns to the minimum number absolutely necessary.
• Allow the motor to run down before switching back on.

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13.7.1
Safety instructions
i DANGER!
Risk of explosion! This electrical equipment is not suitable for an explosive environ-
ment. Death, severe bodily injuries and damage to property may result!
Increased safety "e", non-sparking model "nA" and for Zone 2 in areas exposed to explosion
hazards may only be used in accordance with the stipulations of the appropriate regulatory
authority. It is their job to determine the explosion hazard (classification of hazardous areas/
zones). The dust-layer height for Zone 21 and Zone 22 motors must not exceed max. 5 mm!

• If no other specifications are made in the EC type approval certificate or on the rating plate
  with regard to duty type and tolerance, then motors have been designed for continuous
  operation and normal, non-frequent repetitive startups in which there is no significant
  starting temperature rise. These motors may only be used for the duty type indicated on
  the rating plate.
• Measures to adhere to the temperature class:
  In S1 mains operation (see Electrical configuration document), a protective device that
  has been checked for correct function and is current-independent and that monitors all
  three outer conductors is all that is required to protect the motors. This protective device
  must be set to the rated current. Multiple-speed motors require a protective device for
  each number of poles.

13.7.2
Cleaning
To ensure perfect motor cooling, the air paths (air grids, ducts, cooling fins, tubes) must be
kept free of dirt and contamination.
i DANGER!
It is forbidden to clean the motors in an explosive atmosphere. Death, severe bodily
injuries and damage to property may result.
Surfaces can statically discharge and trigger discharges that can result in ignitions.
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13 Explosion-protected standard motors

13.8.1
General
The motor must be approved by the manufacturer for operation at the frequency converter.
The operating instructions of the frequency converter must be observed. The frequency
converter must be approved for the appropriate output and voltage.
The appropriate standards must be observed (mandatory) for operation with a frequency
converter.
13.8.2
Motors to be fed by frequency converter with alternating fre-
quency and voltage
Standard / Sec-
Type of igni-
Requirements
tion
tion protection
EN 60079-0
Increased
Must be checked as a unit using the frequency
EN 60079-7
Safety
converter described in the documents.
Section 5.2.4.6
„e“
EN 60079-14
Section 11.2.4
EN 60079-15
Non-sparking
Must be checked as a unit using the frequency
Section 17.8.2
„nA“
converter described in the documents.
EN 60079-14
Section 14.4
EN 60079-31
Device dust-
Do not have to be checked as a unit using the fre-
explosion quency converter described in the documents if an
control by overcurrent protection device also ensures thermal
casing „t".
protection. The overcurrent protection device must
not be more than 170% of the highest rated cur-
rent.
13.8.3
Safety switch-off when operating with a frequency converter
The safety switch-off of the unit (motor and frequency converter) must be ensured by discon-
necting all phases from the network, depending on the correctly-set safety-relevant frequency
converter parameter and the PTC thermistor installed in the motor. There must be an EC type
approval certificate for the triggering device of the PTC thermistor. This prevents a non-
permitted violation (overshoot) of the threshold temperatures.
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Preparation and instructions for Ex-protected motors

• Only have repairs done by an authorised workshop.
• Only have repairs and overhauls on motors for areas at risk of gas explosion carried out
  by authorised expert personnel.
• During repairs and overhauls on motors for use with combustible dust, observe the regu-
  lations in accordance with EN/IEC 61241-17 (Electrical apparatus for use in the presence
  of combustible dust - Part 17: Inspection and maintenance of electrical installations in
  hazardous areas)!
  NOTICE!

Repairs and overhauls on motors for areas at risk of gas explosion must be carried out
taking into consideration the appropriate standards.
13.9.1
Repainting
i WARNING!
Risk of explosion due to improper painting. Death, severe bodily injuries and damage to
property may result!
When the paint layer is too thick, it can electrostatically charge. A discharge may occur. There
is also a risk of explosion when explosive mixtures are present at this moment.
If painted surfaces are repainted, one of the following requirements must be met:

• Limit the total thickness of the paint layer according to the explosion group:
• IIA, IIB: total thickness of the paint layer maximum 2 mm.
• IIC: total thickness of the paint layer maximum 0.20 mm for Group II (gas) motors.
• Limit the surface resistance of the paint used:
• IIA, IIB, IIC, III: surface resistance maximum 1 GOhm from Group II and III (gas and
  dust) motors.
• Disruptive voltage maximum 4 kV for explosion group III (only dust).

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14 Permanent magnet synchronous motors/generators
14

The permanent magnet synchronous motors can not be operated directly at the mains supply.
A frequency converter must be used to operate them. There is a difference between motor-
driven operation and operation by generator.

A suitable frequency converter for permanent magnet synchronous motors is required for
motor-driven operation. This must work according to the field-oriented control (FOC) method.
For other control methods, no guarantee is provided for the permissible heating and power
output.
If the permanent magnet synchronous motor is operated in a field weakening range, the
increased terminal voltage must be carefully observed. This could be higher than the mains
voltage connection.

If the shaft is driven, a voltage proportional to the speed is induced and taken off at the motor
terminals. For isolated operation, the consumer can be connected directly or via load regula-
tion equipment.
Inverters that accord to the legal regulations must be used for feeding in the public network.

Permanent magnet synchronous motor are not suitable to be directly switched on at the
network. They must be operated using a frequency converter suitable for permanent magnet
synchronous motors. In case of doubt, consult the manufacturers of both components.
Permanent magnet synchronous motors/generators disperse stray fields both during their
assembly and their disassembly.
The rotors can disturb or destroy other electronic devices and components. This applies in
particular to pacemakers, mobile electronic devices and magnetic strip cards.
Additional safety regulations apply to permanent magnet synchronous motors/generators fed
by frequency converters. This means that even when there is a complete separation of the
electrical connections at the stator terminals, dangerous voltages can nevertheless occur.
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14 Permanent magnet synchronous motors/generators
It must be ensured that before opening the terminal box, rotation of the shaft is effectively
prevented.
Reverse polarity voltages my occur when working at the feed line. Voltages may still occur at
the terminals during standstill of the rotor when feeding the permanent magnet synchronous
motors by frequency converter. Overloading permanent magnet synchronous motors may
result in demagnetisation processes and destroy the winding.
The rotor must only be disassembled with tools specially designed for this purpose. Nonob-
servance of this regulation may result in severe injuries to persons and damage to property.
Persons with pacemakers are at risk when in the vicinity of disassembled rotors excited by
permanent magnets.

Notice is once more explicitly given to the safety instructions, and especially to the require-
ment to isolate the equipment, secure it against being switched back on, and to check that
all parts connected by a voltage source are deenergized.
The instructions described in the first chapters also apply.
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15 Technical data
15

The specific technical data can be found in the shop papers; these are enclosed with every
delivery.
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16 Glossary
16

AC Alternating current
ATEX
ATEX is a synonym for the ATEX Directive of the European Union. The
directive currently includes two regulations regarding explosion protec-
tion, namely the ATEX Product Directive 2014/34/EC and the ATEX Op-
erational Directive 1999/92/EC.
BG
(Overall) size
CE CE Mark
CSA C.US
Canadian Standard Association
DC
Direct current
EMC Electromagnetic compatibility
Ex Identifies explosion-protected production facilities
Explosions protection Devices and production facilities may only be operated in an explosive
class
atmosphere when the maximum surface temperatures remain below
the ignition temperature of the surrounding explosive mixture. Tem-
perature classes are defined to easily assess this; devices are divided
within these classes according to their maximum reachable tempera-
tures.
Half key balancing
Balanced with half key
IC International Cooling (Standard)
IEC
International Electrotechnical Commission
IP Type of protection
Insulation resistance
The insulation resistance is the ohm resistance component between
electrical conductors, or to the ground potential.
Class of insulation
An insulation class characterises or specifies insulating material (e.g.
insulating varnish of enamelled copper wire, the slot insulation of mo-
tors) with respect to their maximum working temperature. The insula-
tion materials are divided in accordance with their heat resistance into
thermal classes with various threshold temperatures.
PTC resistors
PTC resistors are conductive materials that are more able to conduct
the current at low temperatures than at high ones. Their electrical resis-
tance increases as the temperature increases.
KTY
Temperature sensors (silizium sensors)
Cooling type IC 411
Enclosed, self-ventilated motor
Cooling type IC 416
Casing is cooled by installed forced ventilator
MB
Braking torque
MN
Motor torque
Nm
Torque
nmax
Limit speed
NTC
NTC resistors (negative Temperature Coefficient Thermistors)
PE conductor
Protective earth
PN
Rated power
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16 Glossary
PT 100
PT 100 sensors (react very sensitively and quickly to temperature
changes)
PTC
PTC temperature probe (temperature-dependent resistors)
Ra
Roughness values (surface quality)
Ri
Insulation resistance (MOhm)
Switching contact
Bimetal temperature protection
NOC/NCC
Oscillating quantities
Normal - without any special oscillation requirements
Level A
tE
Heating time of the motor
U
Voltage
UL Underwriters Laboratories
UN
Rated insulation voltage
Full-key balancing
Balanced with full key
Heating class F
Use of threshold temperature is at 155°C
Balancing
Non-balanced rotating parts of motors generate vibrations during op-
eration; these vibrations may damage the motor when the component
is above a certain size. Balancing of rotating parts reduces these vibra-
tions to a non-critical level for the components.
Zone 1 Atmosphere: Gas; hazard level: occasional danger; type of protection:
increased safety "e" + pressure-resistant casing "d"
Zone 2 Atmosphere: Gas; hazard level: rare and temporary danger; type of
protection: non sparking "n"
Zone 21 Atmosphere: Dust ; hazard level: occasional danger; type of protection:
protected by casing "t"; device protection level "Db"
Zone 22 Atmosphere: Dust ; hazard level: rare and temporary danger; type of
protection: protected by casing "t"; device protection level "Dc"
Type of ignition pro-
The type of ignition protection is a designation from explosion protec-
tection
tion that stands for the various design principles in this area.
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