*In the case of the set frequency (E152 = 2)
Power restorationPower failure
Auto-restarting after
momentary power failure “IPF”
Time
Undervoltage
During undervoltage “UV”
Main Circuit
DC Voltage
Output frequency
(motor rotation speed)
Time
Time
Time
0
Acceleration
Synchronization
ON
ON
F14=4
Restart Mode after Momentary Power Failure (Basic Operation:
With Auto Search Setting)
The auto search operation does not operate normally if residual voltage is remaining in the motor.
Therefore, it is necessary to secure time for the residual voltage to dissipate.
The required time for restart after momentary power failure is secured by Auto Search Delay Time 2
for Starting Mode (H46).
Power restoration
Main Circuit
DC Voltage
Motor speed
Output frequency
Output frequency
Motor s
pee
d
Power failure
H46
7 Other Functions
7-54
M1 Series Standard Type User's Manual (I669)
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