Omron SYSDRIVE RX Series User Manual page 151

<Group B: Detailed Function Parameters>
Momentary Power Interruption/Trip Retry (Restart)
Restart During Momentary Power Interruption
•You can set whether the Inverter trips or retries (restarts) when a momentary power interruption or
undervoltage occurs.
•If the retry function is selected in retry selection b001, the Inverter retries for the number of times
set in b005 (for momentary power interruption) or b009 (for undervoltage), and trips on the next
time.
(Under the limitless retry setting, the Inverter doesn't trip.)
•You can use b004 to select whether the Inverter trips or not when a momentary power interruption
or undervoltage occurs during stop.
•When selecting the retry function, set retry condition b008 according to your system.
•If undervoltage is retained for 40 seconds even during retry operation, it results in E09
(undervoltage trip).
Parameter No. Function name
b001 Retry selection
Allowable
b002 momentary power
interruption time
b003 Retry wait time
Momentary power
interruption/
b004 undervoltage trip
during stop
*2 *4
selection
Momentary power
b005 interruption retry
time selection
Frequency
matching lower
b007
limit frequency
setting
Trip retry selection
b008
*7
Undervoltage retry
b009
time selection
00: Outputs an alarm after a trip
01: Restarts from 0 Hz at retry
02: Matches the frequency at retry and starts
*3
(example 1)
*4 *6
03: Performs frequency pull-in start at retry and trips
after deceleration stop
04: Performs frequency pull-in restart at retry
*3
(example 1)
0.3 to 25.0:
If the momentary power interruption is within the set
time, the Inverter follows the setting in b001.
0.3 to 100.
Time before restart
00: Disabled
01: Enabled
02: Disabled during stop, and during deceleration
stop when the RUN command is turned off
00: Restarts 16 times during momentary power
interruption
01: Restarts limitlessly during momentary power
interruption
0.00 to 400.0
When the motor free-running frequency falls below
this lower limit frequency, the Inverter restarts at 0
Hz (examples 3 and 4)
00: Outputs an alarm after a trip
01: Restarts from 0 Hz at retry
02: Matches the frequency at retry and starts
03: Performs frequency pull-in start at retry and trips
after deceleration stop
04: Performs frequency pull-in restart at retry
00: Restarts 16 times in the event of undervoltage
01: Restarts limitlessly in the event of undervoltage
Data
*1 *3
4-2 Function Mode
Default setting Unit
⎯
00
1.0 s
1.0 s
⎯
00
⎯
00
0.00 Hz
⎯
00
⎯
00
4-42
4