Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 236)

Servo Parameters
Chapter 7
7-90
Function
Enter the number of poles on the motor. For both standard and
nonstandard digital servomotor(s), the number of poles from the motor
specification literature should be entered here.
Important: If using a standard motor, the correct value for this parameter
is entered automatically. Altering it here has no effect. Standard 8500
servo motors are 8--pole motors. Standard 1326 servo motors are 4--pole
motors. If using a nonstandard motor, refer to the motors documentation
for determining the number of poles.
Axis Parameter
Number
Axis Parameter
Number
(1) [1550] (7) [7550]
(2) [2550] (8) [8550]
(3) [3550] (9) [9550]
(4) [4550] (10) [10550]
(5) [5550] (11) [11550]
(6) [6550] (12) [12550]
Range
Selection Result
(a) 2 Poles
(b) 4 Poles
(c) 6 Poles
(d) 8 Poles
(e) 16 Poles
(f) 32 Poles
(g) No Poles
Notes
This parameter must be set independently for each servo.
7.4.3
Number of Poles on Motor