Electric machine does not
work properly or the
performance is poor
Wrong electric machine
parameters in the inverter.
Check and correct the electric machine parameters from the inverter.
Demagnetization of
magnets due to
overheating.
Measure the winding resistance, refer to manufacturer data. Replace the electric
machine if necessary.
Bearing fault.
Check the bearings, lubrication and conditions.
Insulation fault.
Measure the insulation resistance, refer to the manufacturer limits. See Chapter
. Replace the electric machine if necessary.
Temperature measurement
failure
The PT100 sensor faulty.
Measure the resistance of the PT100 sensor, see Chapter
If the sensor is faulty, read out the signal from another sensor. Contact Danfoss.
See Chapter
EM-PMI240
10. Troubleshooting
| BC355256345493en-000103
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Danfoss | Produced By: Danfoss Power Solutions | September 2020 | 47
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