Danfoss VACON NXS Series Operating Manual page 213

Operating Guide | VACON® NXS/NXP Air-cooled
12.10.56 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.
12.10.57 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.
12.10.58 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.
12.10.59 Fault 18 - Unbalance, Subcode S1 - Current unbalance
Cause
Unbalance between power modules in paralleled power units.
This fault is type A fault (Alarm).
Troubleshooting
If the fault occurs again, ask instructions from the local distributor.
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Specifications
AQ275638903263en-000301 / DPD00910| 213