Standard troubleshooting procedure
LEDs and switches on PCBs and I/O modules
Serial communication interfaces
9.3.3.4 LEDs on optional heat exchangers
De-energizing and grounding the drive
Grounding the drive when the grounding switch is not
released
Unlocking and opening the doors
Emergency release of a door safety switch
Drives with the manual output isolation (optional)
Removing the busbar connectors
9.4.9.2 Fitting the busbar connectors