Omron 3G3RX - Alarm Output for Momentary Power Interruption;Undervoltage During Stop

4-44
4-2 Function Mode
4
Functions
Alarm Output for Momentary Power Interruption/Undervoltage During Stop
•Use b004 to select whether to enable an alarm output in case of momentary power interruption or
undervoltage.
•An alarm output continues while Inverter control power supply remains.
Alarm output for momentary power interruption/undervoltage during stop
Standard (examples 5 to 7)
Operation where DC (P-N) is supplied to control power supply terminal Ro-To (examples 8 to10)
(Example 3) Motor frequency (rpm) > b007
Power supply
Inverter
output
Motor frequency
(rpm)
Free running
t0 t2
Power supply
Inverter
output
(Example 4) Motor frequency (rpm) < b007
Free running
t0 t2
b007
Frequency
matching start
Motor frequency
(rpm)
0-Hz start
b007
(Example 5) b004: 00
Power supply
RUN command
Inverter output
Alarm
Signal during momentary
power interruption (IP)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Inverter is stopped
Power supply
RUN command
Inverter output
Alarm
Signal during momentary
power interruption (IP)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Inverter is running
(Example 6) b004: 01
Power supply
RUN command
Inverter output
Alarm
S
ignal during momentary
power interruption (IP)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Inverter is stopped
Power supply
RUN command
Inverter output
Alarm
Signal during momentary
power interruption (IP)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Inverter is running
(Example 7) b004: 02
Power supply
RUN command
Inverter output
Alarm
Signal during momentary
power interruption (IP)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Inverter is stopped
Power supply
RUN command
Inverter output
Alarm
Signal during momentary
power interruption (IP)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Inverter is running