Rockwell Automation 999 IMC S Class Compact Motion Controller (Cat. No. 4100-999-122) - Manual (Page 94)

5-14 Understanding IMC-S/23x Setups
Publication 999-122 - January 1997
Backlash Compensation
The Backlash Compensation feature can be used on physical SERVO
axes to compensate for the mechanical backlash found in many
mechanical transmissions. In most applications, backlash
compensation is not required, and thus should be disabled. Toggle to
NO and press ENTER to disable backlash compensation.
UNIDIR APPROACH backlash compensation ensures that all moves–
regardless of programmed motion direction–approach the final position
from the same direction. The Approach Direction parameter determines
from which direction the axis approaches the programmed destination
position, while the Backlash Offset parameter determines the amount
of "overshoot" necessary to take up the backlash when approaching
from the opposite direction. Both of these parameters are entered in the
machine setup menu under positioning configuration.
LOAD REVERSAL backlash compensation adds or subtracts a
programmable offset to moves whenever the axis changes direction.
The Backlash Offset parameter is entered in the machine setup menu
under positioning configuration.
Editing the Axis Fault
Action Configuration After completing the axis setup parameters, the IMC-S/23x asks
Toggle to YES , press ENTER, and select the desired SERVO axis as
explained above to configure the fault actions for each physical axis in
your application. If the axis you have selected is not configured, the
message
is displayed and you must select another axis. If the axis you have
selected is configured as a
MASTER ONLY axis, the message
is displayed and you must select another axis.
If you select the imaginary axis , the message
Another Axis? NO
Edit Axis Fault Action Configs? NO
Select: AXIS #
*** This Axis is NOT CONFIGURED!
Select: AXIS #
*** This Axis is MASTER ONLY!
Select: IMAGINARY
*** This Axis is IMAGINARY ONLY!