Otis · DSD 412 Elevator System
The actual field current failed to track the field current command by more than F192 (Default = 0.05) for 5 seconds. This condition is a warning and is not a shutdown fault.
Click steps to track your progress.
Check AC voltage on AC1 and AC2; typically expect 1.5 to 2.5 times VAC(min), where VACmin = VDC/0.9 or (Full Fld Amps * Field resistance)/0.9.
Verify the drive's self-tune values and field response settings.
Monitor parameter F620 Fld Trkg Diff; it should remain less than F192.
Consider increasing parameter F192 ('F413 Detection Level') to eliminate this warning, but exercise caution.