Chapter 14 Fault Codes and DescriptionsC2000 Plus
ID* Display on LCD Keypad Fault Name Fault Descriptions
4
Ground fault (GFF)
When (one of) the output terminal(s) is grounded, short
circuit current is larger than Pr. 06-60
the detection time is longer than Pr. 06-
GFF occurs.
NOTE: the short circuit protection is provided for AC
motor drive protection, not to protect the user.
Action and Reset
Action condition Pr.06-60 (Default = 60%)
Action time Pr.06-61 (Default = 0.10 sec.)
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
Motor burnout or aging insulation
occurred
Check the motor insulation value with megger. Replace th
e motor if the insulation
is poor.
Short circuit due to broken cable
Troubleshoot the short circuit.
Replace the cable.
Larger stray capacitance of the
cable and terminal
If the motor cable length exceeds 100m, decrease the setting value for
frequency.
Take remedies to reduce stray capacitance.
Malfunction caused by
interference
Verify the grounding and wiring of the communication circuit. It is recommended
to separate the communication circuit from the main circuit, or wire in 90 degree
for effective sufficient anti-interference performance.
Hardware failure
Cycle the
power after checking the status of motor, cable and cable length. If
GFF still occurs, return to the factory for repair.
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