Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 181)

Servo Parameters
Chapter 7
7-35
Function
The value entered here sets the furthest distance the axis can be from its
commanded destination to be considered in position when the control is in
G00 (rapid mode), G09 (exact stop nonmodal), G61 (exact stop modal), or
when homing.
This does not affect the final positioning accuracy of the system. It simply
determines how close to the endpoint of a move the axis must be before the
next move can begin.
Important: The value entered here must be less than the value entered for
Gain Break Point or a Warning: “SERVO AMP FE LIMITS
CORRECTED” occurs. However, if the value entered here is too small,
inherent axis and feedback instability may prevent the axis from ever
reaching the commanded position (including home position).
Important: In the event that you have a split axis, both servos must be
within their inposition bands before the control determines the axis
inposition.
Figure 7.20
Axis In-Position Band
Commanded
axis position
INPOSITION BAND
Axis Parameter
Number
Axis Parameter
Number
(1) [1735] (7) [7735]
(2) [2735] (8) [8735]
(3) [3735] (9) [9735]
(4) [4735] (10) [10735]
(5) [5735] (11) [11735]
(6) [6735] (12) [12735]
Range
0 to 214.10000 mm
or
0 to 8.42913 in.
Notes
This parameter must be set independently for each servo.
7.2.7
Inposition Band