Omron MX2 Series User Manual page 374

7 Other Functions
Parameter
No.
Frequency Matching
b007
Lower Limit Frequency
Overvoltage/Overcurrent
b008
Restart Selection
Overvoltage/Overcurrent
b010
Restart Count
Overvoltage/Overcurrent
b011
Restart Standby Time
Frequency Pull-in Restart
b028
Level
Frequency Pull-in Restart
b029
Parameter
Starting Frequency Selec-
b030 tion at Frequency Pull-in
Restart
Multi-function Output
P1/P2 Selection
C021,
Multi-function Relay Out-
C022, C026
put (MA, MB) Function
Selection
*1. Even when the Power Interruption/Undervoltage Restart Selection (b001) is set to 01 to 03 (a restart option)
or the Power Interruption/Undervoltage Trip Selection During Stop (b004) is set to 00 or 02 (a disabled option),
the inverter will trip if the actual power interruption time exceeds the Allowable Power Interruption Time (b002).
(Example 2)
*2. Even when an restart option is selected, the inverter will trip if it is in an undervoltage state continuously for 40
seconds or more.
*3. The inverter may restart at 0 Hz in any of the following cases:
The motor rotation speed is equal to or lower than 1/2 of the base frequency.
The motor induction voltage decays quickly and the motor rotation speed cannot be detected.
*4. If an overvoltage, overcurrent, or other trip occurs during deceleration, the motor will fall in a free-run state with
an Undervoltage (E09) error. In this case, increase the deceleration time.
*5. Even when you selected to restart the inverter during a trip, unless the trip factor is removed, the inverter will
trip when the Restart Standby Time (b003) elapses. In this case, increase the restart standby time.
7 - 64
Function name Data
0.00 to
400.0
00
01
02
03
04
1 to 3
0.3 to 100.0
0.20 ×
Rated cur-
rent to 2.00
× Rated
current
0.1 to 999.9
1000. to 3000.
00
01
02
09
Description
The inverter restarts from 0 Hz if
the frequency when the motor is in
a free-run state drops to the b007
value or lower. (Examples 3 and
4)
Trip
0-Hz restart
Frequency matching restart
Frequency matching restart (Trip
after deceleration stop)
Frequency pull-in restart
Set how many times you want to
have the inverter repeat restart
operation if overvoltage/overcur-
*5
rent occurs.
Set the wait time until the inverter
restarts.
Set the current level during fre-
quency pull-in restart.
Set the deceleration rate for the
output frequency during frequency
pull-in restart.
Set the deceleration time from the
maximum frequency to 0 Hz.
Frequency at shutoff
Maximum frequency
Set frequency (Frequency refer-
ence)
UV: During undervoltage signal
Multi-function Compact Inverter 3G3MX2-V1 User's Manual (I585-E1)
Default
Unit
data
0.00 Hz
*3
−
00
*3
3 time
1.0 s
Rated
current of A
inverter
0.5 s
−
00
− −