Free-Run Stop - Omron 3G3JX User Manual

4-2 Function Mode
•For instructions on how to switch on/off this function automatically with an arbitrary frequency, refer
to "2-step Acceleration/Deceleration Function" (page 4-24).
•To switch via a multi-function input, allocate 09 (2CH) to it.
(Example 1) When A094/A294 is set to 00
FW
2CH
Acceleration 1
4
Output frequency

Free-run Stop

This function sets the motor to free running status by shutting off the Inverter output.
Data
11
Related functions
Required settings
•This function is effective when you stop the motor using the mechanical brake such as an
electromagnetic one. Note that an overcurrent trip may occur if the mechanical brake forces the
motor to stop during Inverter output.
•Allocate 11 (FRS) to the desired multi-function input.
•Performs a free-run stop (FRS) while the FRS terminal is turned on.
•When the FRS terminal is turned off, the motor restarts after retry wait time b003 elapses.
With RUN command selection A002 set to 01 (control terminal), the motor restarts only if the FW
terminal is turned on, even in free running.
•You can select the Inverter output mode for restart at free-run stop selection b088 (0 Hz start or
frequency pull-in restart). (Examples 1, 2)
•The setting of this function is also applied to stop selection b091.
Parameter No.
b088
b003
4-53
Acceleration 2
Deceleration 2
Deceleration 1
F002/F202
A092/A292 A093/A293 F003/F203
Symbol Function name
FRS Free-run stop
Function name
00: 0 Hz start (example 1)
Free-run stop selection 01: Frequency pull-in restart
Retry wait time 0.3 to 100.
(Example 2) When A094/A294 is set to 01
FW
Acceleration 2
A095/A295
Acceleration 1
Output frequency
F002/F202
Status
Sets the motor to free-run status by shutting off
ON
output.
OFF The motor is in normal operation.
C001 to C005
b003, b088, b091
Data
(example 2)
Deceleration 2
A096/A296
Deceleration 1
A092/A292 A093/A293 F003/F203
Description
Default setting
00
1.0
Unit
⎯
s