Delta MS300 Series User Manual page 571

Chapter 14 Fault CodesMS300
ID Display on LCD Keypad
15
Action Condition
Action Time
Fault Treatment Parameter
Reset Method
Reset Condition
Record
Cause
Phase loss of input power
Single phase power input to three-
phase model
Power voltage changes
Loose wiring terminal of input
power
The input cable of three-phase
power is cut off
Input power voltage changes too
much
Unbalanced three-phase of input
power
Fault Name
Phase loss protection
(orP)
Action and Reset
When DC bus ripple is higher than the protection level, and the output current
exceeds 50% of the rated current, the drive starts counting. When the counting
value reaches the upper limit, an orP error occurs.
The action time varies with different output current.
Pr.06-53
Manual reset
Immediately reset when DC bus is higher than Pr.07-00
Yes
Correctly install the wiring of the main circuit power.
Choose the model whose power matches the voltage.
If the main circuit power works normally, verify the main circuit.
Cycle the power after checking the power, if orP error still exists, return to the
factory for repair.
Tighten the terminal screws according to the torque described in the user
manual.
Wire correctly.
Replace the cut off cable.
Verify the setting value for Pr.06-50 Time for Input Phase Loss Detection and
Pr.06-52 Ripple of Input Phase Loss
Check the power three-phase status.
562
Fault Descriptions
Phase loss of power input
Corrective Actions