Backlash Compensation And Digital Override; Backlash Compensation - Mitsubishi Electric MR-JE-*C Instruction Manual

8. HOW TO USE INDEXER

8.5 Backlash compensation and digital override

8.5.1 Backlash compensation

When executing a positioning reversely to the direction to the home position return, set [Pr. PT14 Backlash
compensation] to stop the shaft at the compensated position for the setting value.
When the travel distance between stations is set to 1000 and the backlash compensation is set to 10 in the
absolute position detection system, the timing chart is as follows.
(1) Torque limit changing dog type home position return
Power supply
Status DO2 bit 15
(S_ZP2 (Home position
return completion 2))
Forward rotation
Servo motor speed
Reverse rotation
Target point table
Servo motor current position
(2) Torque limit changing data set type
Power supply
Status DO2 bit 15
(S_ZP2 (Home position
return completion 2))
Forward rotation
Servo motor speed
Reverse rotation
Target point table
Servo motor current position
Backlash is compensated to the direction set with [Pr. PT38] regardless of a JOG operation (1) or
disturbance after power-on.
[Pr. PT38] setting
"0 _ _ _"
"1 _ _ _"
ON
OFF
ON
OFF
0 r/min
No. 1
1000
ON
OFF
ON
OFF
0 r/min
1)
No. 1
1000
Executes backlash compensation assuming a command to the CW
rotation direction before home position return.
Executes backlash compensation assuming a command to the CCW
rotation direction before home position return.
No. 2 No. 3 No. 2
2000 3000 2000-10
Backlash compensation
No. 2 No. 3 No. 2
2000 3000 2000-10
Backlash compensation
Backlash compensation
8 - 19
No. 1 No. 2 No. 1
1000-10 2000 1000-10
No. 1 No. 2 No. 1
1000-10 2000 1000-10
No. 2
2000
No. 2
2000