Delta VFD1A6ME21ANNAA User Manual

Chapter 14 Fault Codes and DescriptionsME300
14-26
ID No. Display on LCM Keypad Fault Name Fault Descriptions
140
GFF detected
when power is on
(Hd6)
The ground current short circuit detected when power is
on.
Action and Reset
Action level Reset the software.
Action time Immediately act
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Immediately reset
Record Yes
Cause Corrective Actions
The length of motor cable is too
long.
Use a shorter cable or install an output reactor.
Check if the motor cable is
abnormal or broken.
Check or replace the cable.
Hardware failure IGBT broken. Return to the factory for repair.
Drive’s current feedback line error
Cycle the power. If Hd6 still occurs during operation, return to the factory for
repair.
ID No. Display on LCM Keypad Fault Name Fault Descriptions
141
GFF occurs before
running
(b4GFF)
The ground short circuit detected when output wiring
detection is performed before the drive runs.
Action and Reset
Action level 240% of the rated current
Action time Immediately act
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Reset in 5 sec. after the fault is cleared.
Record Yes
Cause Corrective Actions
Incorrect motor wiring
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.
Without considering the short circuits, check the motor cable 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.
ID No. Display on LCM Keypad Fault Name Fault Descriptions
142
Auto-tune error 1
(AUE1)
No feedback current error when motor parameter
automatically detects.
Action and Reset
Action level Software detection
Action time Immediately act
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Immediately reset
Record Yes
Cause Corrective Actions
Motor is not wired. Wire the motor correctly.
The electromagnetic contactor is
used as an open state on the
output side of the drive (U/V/W).
Verify that the electromagnetic valve is closed.
ID No. Display on LCM Keypad Fault Name Fault Descriptions
143
Auto-tune error 2
(AUE2)
Motor phase loss error when motor parameter
automatically detects.
Action and Reset
Action level Software detection
Action time Immediately act

Delta VFD1A6ME21ANNAA Specifications

General

Brand	Delta
Model	VFD1A6ME21ANNAA
Category	DC Drives
Language	English