Chapter 14 Fault Codes and DescriptionsCP2000
14-45
ID* Display on LCD Keypad Fault Name Fault Descriptions
87
Overload protection at
low frequency (oL3)
Low frequency and high current protection
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
The drive operates at a frequency
below 15 Hz, and output current is
too large.
1. Enhance the heat dissipation capacity for the cabinet.
2. Lower the carrier frequency (Pr.00-17).
3. Decrease the voltage settings that correspond to frequency below 15 Hz in
the V/F curve.
4. Change Pr.00-11 to general control mode.
5. Replace the drive with a larger power model.
ID* Display on LCD Keypad Fault Name Fault Descriptions
89
Rotor position
detection error
(RoPd)
Rotor position detection error protection
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
Check if the motor cable is
abnormal or broken
Check or replace the cable.
Motor coil error Replace the motor.
Hardware failure IGBT broken. Return to the factory for repair.
Drive’s current feedback line error
Cycle the power. If RoPd still occurs during operation, return to the factory for
repair.
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