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P5 Fault Restart
Fault Restart tries to automatically restart the motor and continue operation to prevent the
motor from stopping when a fault is detected.
The drive diagnoses itself and continues operation when a fault is detected during run. If the
self-diagnosis is successful to clear the fault, the drive restarts automatically with Speed Search.
Refer to b3 (Speed Search) for details.
Note:
1. The Run command (forward/ reverse) will automatically be removed when the sequency control circuit makes the
fault shut off the drive output.
2. When the Run command is removed, the drive diagnoses itself, attemps to clear the fault and restart.
WARNING! Do not perform Fault Restart in applications such as lifting, which could cause the machine to drop the
load.
Fault Restart can be performed when the following faults occur.
Overvoltage (Acceleration)
Overvoltage (Deceleration)
Overvoltage (Constant Speed)
Overcurrent (Acceleration)
Overcurrent (Deceleration)
Overcurrent (Constant Speed)
Set Fault Restart in P5-00 to P5-03.
Set E2-00 to E2-03 to 14 (Fault Start) to output the signal to an external devices.
P5-00 Number of Auto Restart Attempts
Sets the number of times to automatically attempt to restart the drive when detecting the fault
listed above. The drive will stop operation when the restart attemps reach the number set in
this parameter. Clear the cause of the fault manually and restart the drive.
The number of auto restart attemps is reset to 0 in the following situations.
· The drive runs normally for 10 minutes after a fault restart.
· A fault is reset manually after the protection function is triggered.
· The power supply is cycled.