Delta VFD17AMS43ANSAA

Chapter 13 Warning CodesMS300
487
ID No.
Display on LCD Keypad
Warning Name
Description
19
Phase loss
(PHL)
Input phase loss warning
Action and Reset
Action Condition
One of the phases outputs less than Pr.06-47
Action Time
Pr.06-46
Warning Setting Parameter
Pr.06-45 Output Phase Loss Detection Action (OPHL) = 0
0: Warn and continue operation
Reset Method
“Warning” automatically clears when the drive stops
Reset Condition
After the drive stops
Record
N/A
Cause
Corrective Actions
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.