Danfoss VACON NXS Series Operating Manual page 220

Specifications
Operating Guide | VACON® NXS/NXP Air-cooled
Troubleshooting
Reset the fault. The device is ready for use. The drive starts to use the old parameter settings.
12.10.86 Fault 39 - Device removed
Cause
An option board was removed from the slot.
Troubleshooting
The device is not available. Reset the fault.
12.10.87 Fault 40 - Device unknown, Subcode S1 - Unknown device
Cause
An unknown or mismatching device was connected (the power unit or option board).
Troubleshooting
Ask instructions from the local distributor.
12.10.88 Fault 40 - Device unknown, Subcode S2 - StarCoupler: power sub units are not identical
Cause
An unknown or mismatching device was connected (the power unit or option board).
Troubleshooting
Ask instructions from the local distributor.
12.10.89 Fault 40 - Device unknown, Subcode S3 - StarCoupler is not compatible with the control
board
Cause
An unknown or mismatching device was connected (the power unit or option board).
Troubleshooting
Ask instructions from the local distributor.
220 | Danfoss A/S © 2020.02
AQ275638903263en-000301 / DPD00910