Delta MS300 Series User Manual page 614

ID Display on LCD Keypad
82
Action Condition
Action Time
Fault Treatment Parameter
Reset Method
Reset Condition
Record
Cause
Unbalanced three-phase
impedance of the motor
The motor is wired incorrectly
Using a single-phase motor
The current sensor is damaged
The drive capacity is much larger
than the motor capacity
Fault Name
Output phase loss
U phase
(oPL1)
Action and Reset
Pr.06-47
Pr.06-46
Pr.06-48: Use the setting value of Pr.06-48 first. If DC braking function
activates, use that of Pr.06-46.
Pr.06-45
0: Warn and continue operation
1: Fault and ramp to stop
2: Fault and coast to stop
3: No warning
Manual reset
Immediately reset
Pr.06-45 = 1 or 2 is "Fault", and the fault is recorded.
Replace the motor.
Check the cable condition.
Replace the cable.
Choose a three-phase motor
Check the flat cable of the control board. Re-do the wiring and test again if the
flat cable is loose. If the fault still exists, return to the factory for repair.
Verify that the three-phase current is balanced with a current clamp meter. If it
is balanced and the oPL1 fault still exists, return to the factory for repair.
Make sure the capacity of the drive and motor match to each other.
605
Fault Descriptions
U phase output phase loss
Corrective Actions
Chapter 14 Fault CodesMS300