Delta VFD220C43A-21 - Page 922

Chapter 14 Fault Codes and DescriptionsC2000 Plus
14-19
ID* Display on LCD Keypad Fault Name Fault Descriptions
15
Phase loss protection
(OrP)
Phase loss of power input
Action and Reset
Action condition DC bus is lower than Pr.07-00, and DC bus ripple is higher than Pr.06-52
Action time N/A
Fault treatment parameter Pr.06-53
Reset method Manual reset
Reset condition Reset immediately when DC bus is higher than Pr.07-00
Record Yes
Cause Corrective Actions
Phase loss of input power Correctly install the wiring of the main circuit power.
Single phase power input to three-
phase model
Choose the model whose power matches the voltage.
Power voltage changes
If the main circuit power works normally, verify the main circuit.
Cycle the power after checking the power, if OrP fault still occurs
, return to the
factory for repair.
Loose wiring terminal of input
power
Tighten the terminal screws according to the torque described in the user manual.
The input cable of three-phase
power is cut off
Wire correctly.
Replace the cut off cable.
Input power voltage changes too
much
Verify the setting value for Pr.06-50 Time for Input Phase
Loss Detection and
Pr.06-52 Ripple of Input Phase Loss
Unbalanced three-phase of input
power
Check the power three-phase status.