Chapter 14 Fault CodesMH300
ID No.
Display Fault Name Description
14
Low-voltage at stop
(LvS)
1. DC bus voltage is lower than Pr.06-00
value at stop.
2. Hardware failure in voltage detection.
Action and Reset
Action condition Pr.06-00 (Default = depending on the model)
Action time Immediately act when DC bus voltage is lower than Pr.06-00.
Fault treatment parameter N/A
Reset method
Manual / Auto
230V series: Lv level + 30 V
DC
+ 500 ms
460V series: Lv level + 60 V
DC
+ 500 ms
Reset condition 500 ms
Record Yes
Cause Corrective Actions
Power-off Improve power supply condition.
Incorrect drive models Check if the power specification matches the drive.
Power voltage changes
Adjust voltage to the power range of the drive.
Cycle the power after checking the power. I
f LvS error still exists, return
to the factory for repair.
Start up the motor with large
capacity.
Check the power system.
Increase the capacity of power equipment.
DC bus Install DC reactor(s).
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