8.12 Additional Adjustment Functions
8.12.8 Backlash Compensation
8-72
This parameter can be set to compensate for positioning offset caused by the backlash of
gears.
Specify the direction for compensation with the sign and the quantity of the compensation with
a numeric value. If the sign is positive, compensation will be applied for forward positioning. If
the sign is negative, compensation will be applied for reverse positioning. If the setting is
changed, the new setting will be enabled from the next positioning.
When using an incremental encoder, the final direction used in homing generally serves as the
reference direction and backlash compensation is applied in the opposite direction.
When using an absolute encoder, the initial direction of movement generally serves as the refer-
ence direction and backlash compensation is applied in the opposite direction.
Even when compensation is applied, the compensation will not be indicated in the target posi-
tion monitor or any other monitor values. Only the actual motor positions will be subject to
compensation.
PnB50
Backlash Compensation
Setting Range
Setting Unit
Default Setting
When Enabled
-1000 to 1000
1 reference unit
0
Immediately
PnB50 > 0
PnB50 < 0
Positioning
in Forward
Direction
Positioning
in Reverse
Direction
Machine
Motor
position
Forward
Reverse
Reference
side
Compensation
applied.
Machine
Motor
position
Forward
Reverse
Reference
side
Compensation
not applied.
Machine
Motor
position
Forward
Reverse
Reference
side
Compensation
not applied.
Machine
Motor
position
Forward
Reverse
Reference
side
Compensation
applied.