Delta VFD2A8MS21ANSAA User Manual

Chapter 13 Warning CodesMS300
494
ID No.
Display on LCD Keypad
Warning Name
Description
28
Output phase loss
(oPHL)
Output phase loss of the drive
Action and Reset
Action Condition
Pr.06-47
Action Time
N/A
Warning Setting Parameter
Pr.06-45
0: Warn and continue operation
1: Fault and ramp to stop
2: Fault and coast to stop
3: No warning
Reset Method
If Pr.06-45 is set to 0, the oPHL warning automatically clears after the drive
stops.
Reset Condition
N/A
Record
N/A
Cause
Corrective Actions
Unbalanced three-phase
impedance of the motor
Replace the motor.
Check if the wiring is incorrect
Check the cable.
Replace the cable.
Check if the motor is a single-
phase motor
Choose a three-phase motor.
Check if the current sensor is
broken
Check if the control board cable is loose. If yes, reconnect the cable and run the
drive to test. If the error still occurs, return to the factory for repair.
Check if the three-phase current is balanced with a current clamp meter. If the
current is balanced and the oPHL error still shows on the display, return to the
factory for repair.
Check if capacity of the drive is
larger than the motor
Choose a drive’s capacity matches a motor’s.

Delta VFD2A8MS21ANSAA Specifications

General

Brand	Delta
Model	VFD2A8MS21ANSAA
Category	DC Drives
Language	English