Delta MS300 Series User Manual page 496

ID No. Display on LCD Keypad
19
Action Condition
Action Time
Warning Setting Parameter
Reset Method
Reset Condition
Record
Cause
Phase loss of the input power
Single phase power input on a
three-phase model
The power voltage has changed
Loose wiring terminal of input
power
Check if the input cable of three-
phase power is broken
Unbalanced three-phase of the
input power
Warning Name
Phase loss
(PHL)
Action and Reset
One of the phases outputs less than Pr.06-47
Pr.06-46
Pr.06-45 Output Phase Loss Detection Action (OPHL) = 0
0: Warn and continue operation
"Warning" automatically clears when the drive stops
After the drive stops
N/A
Verify the wiring of the main circuit.
Use the model with voltage that matches the power.
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.
Tighten the terminal screws with the torque listed in the user manual.
Make sure the wiring is correct.
Replace the broken part of the cable.
Check the status of three-phase power.
487
Chapter 13 Warning CodesMS300
Description
Input phase loss warning
Corrective Actions