Delta MS300 Series User Manual page 635

Chapter 14 Fault CodesMS300
ID Display on LCD Keypad
141
Action Condition
Action Time
Fault Treatment Parameter
Reset Method
Reset Condition
Record
Cause
Incorrect wiring for the motor
Short-circuit at motor output due to
poor insulation wiring
Check for possible burnout or
aging insulation of the motor
Fault Name
GFF occurs before run
(b4GFF)
Action and Reset
250% of the rated current
Immediately act
N/A
Manual reset
Reset in five seconds after the fault is cleared
Yes
Check if the motor's internal wiring and the UVW wiring of the drive output
terminal are correct.
Check the motor cable and remove causes of the short circuits, or replace the
cable before turning on the power.
Check the motor insulation value with megger. Replace the motor if the
insulation is poor.
626
Fault Descriptions
The ground short circuit detected when the output
wiring detection is performed before the drive runs.
Corrective Actions