7   Applied Functions
7 - 20
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
7-5 Backlash Compensation
This function compensates the specified backlash compensation amount, travel distance, and present 
position.
Use this function when there is a meshing error in machine systems.
The Backlash Compensation function can be used when the communications period is 250 µs or more. 
When the communications period is 125 µs, set Backlash Compensation Selection to 0 (disabled).
The backlash compensation function operates in the position control.
7-5-1 Operating Conditions
7-5-2 Objects Requiring Settings
Index 
(hex)
Subindex 
(hex)
Name Description
Refer-
ence
3001
---
Machine
---
P. 9 - 1 2
02 Backlash Compensation 
Selection
Selects whether to enable or disable backlash 
compensation in the position control, and the 
operation direction for the compensation.
0: Disabled
1: Compensate at the first positive operation 
after Servo ON
2: Compensate at the first negative operation 
after Servo ON
P. 9 - 1 2
03 Backlash Compensation 
Amount
Sets the backlash compensation amount in 
the position control.
P. 9 - 1 2
04 Backlash Compensation 
Time Constant
Sets the backlash compensation time con-
stant in the position control.
P. 9 - 1 3