Omron 3G3JX

4-28
4-2 Function Mode
4
Functions
Trip Retry Function
•Select the retry function during operation in [b001] (01 or 02). If [b005] is 00 (default), the following
operations are to be performed.
At the time of momentary power interruption and undervoltage:
Restarts 16 times and trips on the 17th time.
At the time of overcurrent and overvoltage:
Restarts 3 times respectively and trips on the 4th time.
Retry times are counted separately for momentary power interruption, undervoltage, overcurrent,
and overvoltage. For example, an overvoltage trip occurs only after 3-time overcurrent trips and
then 4-time overvoltage trips. For momentary power interruption and undervoltage, if [b005] is set
to 01, the retry operation continues until the status is cleared.
•You can select the operation for momentary power interruption and undervoltage during stop in
b004.
(Supplemental Information)
Frequency matching start: Restarts the motor without stopping it after matching the motor rotation
speed. (If the RUN command is set on the Digital Operator (A002 = 2), the Inverter stops.)
•Below is the timing chart where the retry function (b001: 02) is selected.
b004
Momentary power
interruption/
undervoltage trip during
stop selection
00: Disabled
01: Enabled
00 ⎯
b005
Momentary power
interruption retry time
selection
00: 16 times
01: No limit
00 ⎯
b011
Starting frequency at
frequency pull-in restart
00: Frequency at interruption
01: Max. frequency
02: Set frequency
00 ⎯
b029
Deceleration rate
constant at frequency
pull-in restart
0.1 to 3000.0 0.5 s
b030
Frequency pull-in
restart level
0.2 × Rated current to 2.0 × Rated current Rated current A
Related functions C021, C026
Parameter No. Function name Data Default setting Unit
(Example 1) Duration of momentary power interruption
< Allowable duration of momentary power
interruption (b002)
Power supply
Inverter output
Motor rotation speed
Alarm
ON
OFF
Free running
t0
t2
t1
[t0: Duration of momentary power interruption / t1: Allowable duration of momentary power interruption (b002) / t2: Retry wait time (b003)]
Power supply
Inverter output
Motor rotation speed
Alarm
ON
OFF
(Example 2) Duration of momentary power interruption
> Allowable duration of momentary power
interruption (b002)
Free running
t0
t1