Chapter 14 Fault CodesMS300
626
GFF occurs before run
(b4GFF)
The ground short circuit detected when the output
wiring detection is performed before the drive runs.
250% of the rated current
Fault Treatment Parameter
Reset in five seconds after the fault is cleared
Incorrect wiring for the motor
Check if the motor’s internal wiring and the UVW wiring of the drive output
terminal are correct.
Short-circuit at motor output due to
poor insulation wiring
Check the motor cable and remove causes of the short circuits, or replace the
cable before turning on the power.
Check for possible burnout or
aging insulation of the motor
Check the motor insulation value with megger. Replace the motor if the
insulation is poor.