Chapter 9 Inverter Functions
9-9-10
Restart mode
selection after
instantaneous power
failure/undervoltage
error
The inverter restarts from 0 Hz.
Performs the frequency matching restart
(= Active frequency matching restart at the frequency
of the previous output interruption).
After frequency matching restart (= Active frequency
matching restart at the frequency of the previous
output interruption), deceleration stop and trip occur.
Performs the active frequency matching restart.
Instantaneous power
failure/undervoltage
allowed time
If the power returns within this set time, the inverter
restarts. If the instantaneous power
failure/undervoltage lasts for longer than this set time,
the inverter will trip.
Retry wait time after
instantaneous power
failure/undervoltage
error
Sets the wait time from when the power returns until
the restart.
Enable instantaneous
power failure/
undervoltage trip
while in stop status
Disabled: No trips occur during stop.
Enable: Trips occur even during stop.
No trips occur during deceleration stop when RUN
command is OFF or during stop.
Number of retries after
instantaneous power
failure/undervoltage
16 times:
The inverter restarts up to the 16th instantaneous
power failure/ undervoltage error, but trips for the
17th time and thereafter.
(The counter is cleared by a reset input or power
interruption.)
Unlimited: No trips occur.
Undervoltage [UV]:
This signal turns on when the P-N voltage is equal
to or below the undervoltage level.
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