Maximum axis speeds – Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set User Manual

Page 302

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Section 5B

9/440HR CNC/Drive System

5B-12

Maximum Axis Speeds

Axis feedback resolution (for 1326AB motors with high--resolution

feedback devices) for single (SinCoder) and multiturn (SinCos) absolute

high--resolution feedback devices is selected in AMP. The axis feedback

resolution is 2,097,152 counts/rev or 1,048,576 counts/rev, respectively.

The maximum motor RPM for both devices is based on the maximum

speed on the 1326AB motor plate found on the side of your motor’s

housing. Actual final axis speed is based on gearing and lead screw pitch.

The 1326AB motors are equipped with devices used to generate velocity
feedback and provide motor commutation. These devices can also be used

as positioning devices for the axis. Resolution of the high--resolution

feedback devices depends on the motor type (SinCos or SinCoder

feedback) your system requires.

The high--resolution feedback device’s feedback is wired directly from the

motor--mounted high--resolution feedback device to the 9/440HR Feedback

board found in the system module. This cable can be purchased directly

from Allen-Bradley (cat. no. 1326-CECU--x).

Connect High--resolution

Feedback Device to

9/440HR Feedback Board

(cable 1326-CECU--x)

1326AB Servo Motor

3
2

8
9

7
6

5
4
1

A
B

E

F

G

J4

J3

J2

J1

Front of System Module

System Module

Bottom View

Mo

to

r--

Mo

un

te

d

Fe

ed

ba

ck

Po

rts

J12

J11

J10

J9

Op

tio

na

lFe

ed

ba

ck

Po

rts

11

12

10

C

D

I

J

H

Feedback Board

Motor

Motor Plate

5B.3.1

Connecting the 1326AB

Motor- mounted Feedback

Device

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