Electronic Thermal Function; Alarm Selection For Momentary Power Interruption During Stop - Omron 3G3JX User Manual

4-2 Function Mode
Alarm Selection 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 and undervoltage during stop (Examples 3 and 4)
(Example 3) b004: 00
RUN command
4
Inverter output
(Example 4) b004: 01
Power supply
RUN command
Inverter output

Electronic Thermal Function

This function electronically protects the motor from overheating.
•Causes an overload trip (E05) to protect the motor from overheating by setting according to the
motor rated current.
•Provides the most appropriate protection characteristics, taking into account the decline of the
motor cooling capability at a low speed.
•To set a value over the rated current of the motor, be careful of any temperature rise of the motor.
Parameter No.
b012
*
b212
b013
*
b213
Related functions
* To switch to the 2nd control, allocate 08 (SET) to the multi-function input terminal and then turn it on.
4-29
While the Inverter is stopped
ON
Power supply
OFF
ON
OFF
ON
Alarm
OFF
While the Inverter is stopped
ON
OFF
ON
OFF
ON
Alarm
OFF
Function name
Electronic thermal level
0.2 × Rated current to 1.0 × Rated current
2nd electronic thermal
level
Electronic thermal
00: Reduced torque characteristics 1
characteristics selection
01: Constant torque characteristics
2nd electronic thermal
02: Reduced torque characteristics 2
characteristics selection
While the Inverter is running
ON
Power supply
OFF
ON
RUN command
OFF
Inverter output
ON
Alarm
OFF
While the Inverter is running
ON
Power supply
OFF
ON
RUN command
OFF
Inverter output
ON
Alarm
OFF
Data
C021, C024
Default setting Unit
Rated current A
Rated current A
⎯
00
⎯
00