Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 196)

Servo Parameters
Chapter 7
7-50
Axis Parameter
Number
Axis Parameter
Number
(1) [1570] (7) [7570]
(2) [2570] (8) [8570]
(3) [3570] (9) [9570]
(4) [4570] (10) [10570]
(5) [5570] (11) [11570]
(6) [6570] (12) [12570]
Notes
Important: An application note is available for integrating linear scales to
the control. Contact your local Allen-Bradley representative.
This parameter must be set independently for each servo.
Figure 7.29
Distinguishing a Z < A Encoder from a Z > A Encoder
Indicates period during which A, B, and Z channels are simultaneously high
Examples of Z < A (narrow marker) encoders
Examples of Z > A (wide marker) encoders
A channel
B channel
Z channel (Z < A)
Z channel (Z < A)
Z channel (Z < A)
A channel
B channel
Z channel (Z > A)
Z channel (Z > A)