Danfoss VACON NX FI4, Руководство по эксплуатации

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Troubleshooting
• Do a check of the actual amount and flow of cooling air.
• Examine the heat sink for dust.
• Do a check of the ambient temperature.
• Make sure that the switching frequency is not too high in relation to the ambient temperature and the motor load.
12.10.55 Fault 15 - Motor stalled
Cause
The motor stalled.
It is possible to set different responses in the application for this fault. See parameter group Protections.
Troubleshooting
• Check the motor and the load.
• Insufficient motor power, check motor stall protection parameterization.
12.10.56 Fault 16 - Motor overtemperature
Cause
There is too heavy a load on the motor.
It is possible to set different responses in the application for this fault. See parameter group Protections.
Troubleshooting
• Decrease the motor load.
• If there is no motor overload, do a check of the temperature model parameters.
12.10.57 Fault 17 - Motor underload
Cause
Motor underload protection has tripped.
It is possible to set different responses in the application for this fault. See parameter group Protections.
Troubleshooting
• Check the load.
• Check underload protection parameterization.
12.10.58 Fault 18 - Unbalance, Subcode S1 - Current unbalance
Cause
Unbalance between power modules in paralleled power units.
Specifications Operating Guide | VACON® NX Inverters FI4-FI8
AQ299433367205en-000101 / DPD00908
140 | Danfoss A/S © 2019.07