English (GB)
2
English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
Page
1. Symbols used in this document
1.1 Safety
Observe the safety instructions to ensure correct installation,
operation and maintenance of the motor. The instructions must
be known by any person installing, using or maintaining the
motor. Failure to observe the instructions may invalidate the
warranty.
Safety equipment required to prevent accidents must be made
available according to local safety instructions.
2. Introduction
These installation and operating instructions apply to these
Grundfos MG motors:
For model designation, see section 4.2 Type key.
2.1 Application
MG motors can be used within the framework of IEC 60034.
1. Symbols used in this document
2
1.1 Safety
2
2. Introduction
2
2.1 Application
2
3. Delivery and handling
3
3.1 Delivery
3
3.2 Handling
3
4. Identification
3
4.1 Nameplate
3
4.2 Type key
3
5. Construction
4
5.1 Mounting designations
4
5.2 Drain holes
4
5.3 Motor bearings
4
5.4 Balancing
4
5.5 Cable entry/screwed connection
5
6. Operating conditions
5
6.1 Ambient temperature and installation altitude
5
6.2 Frequency converter operation
5
7. Mechanical installation
6
7.1 Clearance
6
7.2 Terminal box positions
6
7.3 Outdoor installation
6
7.4 Foundation
6
7.5 Alignment
6
7.6 Fitting of coupling parts and pulleys
6
8. Electrical installation
7
8.1 General information
7
8.2 Electrical connection
7
9. Start-up
7
9.1 Measuring the insulation resistance
7
9.2 Direction of rotation
7
10. Operation
7
10.1 Max. number of starts per hour
7
11. Maintenance
8
11.1 Motor
8
11.2 Motor bearings
8
12. Technical data
8
12.1 Weight
8
12.2 Enclosure class
8
12.3 Dimensional sketches
8
12.4 Sound pressure level
8
12.5 Winding resistances
8
13. Fault finding
8
14. Service
9
14.1 Motor bearings
9
14.2 Service documentation
9
15. Disposal
9
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.
Warning
If these safety instructions are not observed, it may
result in personal injury.
Warning
If these instructions are not observed, it may lead to
electric shock with consequent risk of serious
personal injury or death.
Warning
The surface of the product may be so hot that it may
cause burns or personal injury.
If these safety instructions are not observed, it may
result in malfunction or damage to the equipment.
Notes or instructions that make the job easier and
ensure safe operation.
Model
Phase
Power range
[kW]
IEC frame size
1 3 2-pole 4-pole 2-pole 4-pole
B
0.25 - 2.2 0.18 - 1.1 71 - 90 71 - 90
0.25 - 71 -
C 0.37 - 11 0.25 - 5.5 71 - 132 71 - 132
D 1.1 - 11 1.1 - 4.0 90 - 160 90 - 112
F 7.5 - 22 5.5 - 15 132 - 180 132 - 160
H 0.75 - 22 0.75 - 15 80 - 180 90 - 160
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