Omron M1 Series User Manual page 636

7 Other Functions
 Timing diagram for commercial switching
Operation SW
RUN command
Commercial power supply selection
Inverter primary side
Inverter secondary side
T3 (ON delay)
Inverter secondary side
Commercial power supply switch
T1 (OFF delay)
Forward command
Commercial power supply switch
T2 (OFF delay)
Commercial power supply selection
Commercial power supply circuit
Inverter output
and motor rotation
7-9-16
Output current fluctuation damping
When the motor is driven, the output current of the inverter may fluctuate (current fluctuation) due to
the motor characteristics or the backlash at the load machine side. This parameter increases the 1st
Output Current Fluctuation Damping Gain (H80) and 2nd Output Current Fluctuation Damping Gain
(A41) when the control function for suppressing such current fluctuation is to be adjusted.
7-144
Inverter Commercial power
operation supply operation
ON
3S
Stop SW
5S
OPX
Alarm
30
Inverter
Commercial power supply
43
ON
MC1
delay timer
ON
ON
MC2
T1
delay timer
ON
ON
FD
CS
MC3
Motor free-run
Inverter output
Inverter operation
ON
ON
T3
ON
ON
ON
T2
ON
ON
H13
ON
Motor rotation
Motor free-run
free-run Pull-in
M1 Series Standard Type User's Manual (I669)
When switching to commercial
power supply due to occurrence of
an alarm during inverter operation
t
t
t
↓ Alarm occurrence
ON
t
Inverter
t
t
t
t
T1
ON
t
t
t
t
ON
t
Motor free-run
t