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05-04
Restarting after momentary blackout
Factory setting
0
Setting range
0:Operation stops after momentary blackout
1:Restarting after momentary blackout, tracking downwards from before the
blackout of Inverter
2:Restarting after momentary blackout, tracking upwards from the min starting
frequency of Inverter.
Note:After momentary blackout, during the period of AC motor drive restart, abnormal contact does not act.
This parameter defines the AC drive mode of operation after recovery from a momentary blackout.
05-05
Max allowable time for blackout
Factory setting
2.0
Setting range 0.3
～
5.0 Sec
This parameter shall set Max allowable time for blackout in case of momentary blackout and if function of
Restarting after momentary blackout is started. If power supply breaking time exceeds Max allowable time(05-05),
output of AC motor drive shall stop after power resupplied.
05-06
After power is recovered, tracking time(B.B time)
Factory setting
0.5
Setting range 0.3
～
5.0 S
If power supply interruption is detected, AC motor drive shall stop output and shall not be re-started until after set
time by this parameter. It’s preferred to provide output side residual voltage to be approximately 0V prior to AC
motor drive starting.
05-07
Max current setting for speed tracking
Factory setting
150
Setting range 30
～
200%
Following a
blackout, the AC drive will restart and perform searching speed, if the output current is more than the
setting value by 05-07.When the output current is less than the setting value by 05-07(the AC drive output
frequency is at a “speed synchronization). The AC motor drive will start to accelerate or decelerate back to the
operating frequency at which it was running prior to a blackout.
