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12.10.44 Fault 9 - Undervoltage, Subcode S2 - No data from power unit
Cause
The DC-link voltage is lower than the limits.
Too low a supply voltage
AC drive internal fault
a defective input fuse
the external charge switch is not closed.
It is possible to set different responses in the application for this fault. See parameter group Protections.
Troubleshooting
If there is a temporary supply voltage break, reset the fault and start the drive again.
Do a check of the supply voltage. If the supply voltage is sufficient, there is an internal fault.
Ask instructions from the local distributor.
12.10.45 Fault 9 - Undervoltage, Subcode S3 - Undervoltage control supervision
Cause
The DC-link voltage is lower than the limits.
Too low a supply voltage
AC drive internal fault
A defective input fuse
The external charge switch is not closed.
It is possible to set different responses in the application for this fault. See parameter group Protections.
Troubleshooting
If there is a temporary supply voltage break, reset the fault and start the drive again.
Do a check of the supply voltage. If the supply voltage is sufficient, there is an internal fault.
Ask instructions from the local distributor.
12.10.46 Fault 10 - Input line supervision, Subcode S1 - Phase supervision diode supply
Cause
The input line phase is missing.
It is possible to set different responses in the application for this fault. See parameter group Protections.
Troubleshooting
Do a check of the supply voltage, the fuses, and supply cable.
12.10.47 Fault 11 - Output phase supervision, Subcode S1 - Common output phase supervision
Cause
The measurement of current tells that there is no current in 1 motor phase.
It is possible to set different responses in the application for this fault. See parameter group Protections.
Troubleshooting
Do a check of the motor cable and the motor.
12.10.48 Fault 11 - Output phase supervision, Subcode S2 - Additional closed loop control output
phase fault
Cause
The measurement of current tells that there is no current in 1 motor phase.
It is possible to set different responses in the application for this fault. See parameter group Protections.
Troubleshooting
Do a check of the motor cable and the motor.
12.10.49 Fault 11 - Output phase supervision, Subcode S3 - Additional open loop control output
phase fault during start DC brake
Cause
The measurement of current tells that there is no current in 1 motor phase.
AQ275638903263en-000601 / DPD00910 | 179
Danfoss A/S © 2022.12
Specifications
VACON® NXS/NXP Air-cooled
Operating Guide
