Chapter 13 Warning CodesMS300
487
One of the phases outputs less than Pr.06-47
Warning Setting Parameter
Pr.06-45 Output Phase Loss Detection Action (OPHL) = 0
0: Warn and continue operation
“Warning” automatically clears when the drive stops
Phase loss of the input power
Verify the wiring of the main circuit.
Single phase power input on a
three-phase model
Use the model with voltage that matches the power.
The power voltage has changed
If the power of main circuit works well, check if the MC of the main circuit is
broken.
Cycle the power after verifying the power is normal. If PHL still occurs, return to
the factory for repair.
Loose wiring terminal of input
power
Tighten the terminal screws with the torque listed in the user manual.
Check if the input cable of three-
phase power is broken
Make sure the wiring is correct.
Replace the broken part of the cable.
Unbalanced three-phase of the
input power
Check the status of three-phase power.