Chapter 6 Fault Code Information and Maintenance
VFD-EL-W
6-4
Fault Name Fault Descriptions Corrective Actions
Communication Fault
1. Check the RJ45 connection between the AC motor
drive for loose wires and wiring to the correct pins.
2. Check if the communication protocol is properly set.
3. Refer to Parameter Group 09 Communication
Parameters in Chapter 4 for detailed information.
PID feedback signal fault
1. Check the parameter settings (Pr.10.01) and AVI/ACI
wiring.
2. Check for possible fault between the system response
time and the PID feedback signal detection time
(Pr.10.08)
Software protection failure Password locked.
Analog signal error Check if the wiring for ACI is broken.
Unusual PID feedback
Check if wiring for PID feedback is correct and the
parameter of PID feedback is properly set.
Phase Loss Check if the input power is three-phase.
Multi-motor fault protection
Check if the motor wiring is normal.
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