English (GB)
6
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
6
1.1 Safety
6
2. Introduction
6
2.1 Application
6
3. Delivery and handling
7
3.1 Delivery
7
3.2 Handling
7
4. Identification
7
4.1 Nameplate
7
4.2 Type key
7
5. Construction
8
5.1 Mounting designations
8
5.2 Drain holes
8
5.3 Motor bearings
8
5.4 Balancing
8
5.5 Cable entry/screwed connection
8
6. Operating conditions
9
6.1 Ambient temperature and installation altitude
9
6.2 Frequency converter operation
9
7. Mechanical installation
10
7.1 Clearance
10
7.2 Terminal box positions
10
7.3 Outdoor installation
10
7.4 Foundation
10
7.5 Alignment
10
7.6 Fitting of coupling parts and pulleys
10
8. Electrical installation
10
8.1 General information
10
8.2 Electrical connection
10
9. Start-up
11
9.1 Measuring the insulation resistance
11
9.2 Direction of rotation
11
10. Operation
11
10.1 Max. number of starts per hour
11
11. Maintenance
11
11.1 Motor
11
11.2 Motor bearings
11
12. Technical data
11
12.1 Weight
11
12.2 Enclosure class
11
12.3 Dimensional sketches
11
12.4 Sound pressure level
11
12.5 Winding resistances
11
13. Fault finding
12
14. Service
12
14.1 Motor bearings
12
14.2 Service documentation
12
15. Disposal
12
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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