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Troubleshooting
Set the deceleration time longer.
Use the brake chopper or the brake resistor. They are available as options.
Activate the overvoltage controller.
Do a check of the input voltage.
12.10.6 Fault 2 - Overvoltage, Subcode S2 - Overvoltage control supervision
Cause
The DC-link voltage is higher than the limits.
Too short a deceleration time
High overvoltage spikes in the supply
Motor load is generative
Start/Stop sequence too fast
Troubleshooting
Set the deceleration time longer.
Use the brake chopper or the brake resistor. They are available as options.
Activate the overvoltage controller.
Do a check of the input voltage.
12.10.7 Fault 3 - Earth fault
Cause
The measurement of current tells that the sum of the motor phase current is not zero.
Insulation malfunction in the cables or in the motor.
It is possible to set different responses in the application for this fault. See parameter group Protections.
Troubleshooting
Do a check of the motor cables and the motor.
12.10.8 Fault 5 - Charging switch
Cause
The charging switch is open, when the START command is given.
Operation malfunction
Defective component
Troubleshooting
Reset the fault and start the drive again.
If the fault shows again, ask instructions from the local distributor.
12.10.9 Fault 6 - Emergency stop
Cause
Stop signal has been given from the option board.
Troubleshooting
Do a check of the emergency stop circuit.
12.10.10 Fault 7 - Saturation trip
Cause
defective component
brake resistor short circuit or overload
AQ275638903263en-000601 / DPD00910 | 173
Danfoss A/S © 2022.12
Specifications
VACON® NXS/NXP Air-cooled
Operating Guide
