Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set User Manual

Page 99

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Section 3A

Primary 9/230 Components

3A-16

The 9/Series CNC supports Allen-Bradley Series 1386, 1387, 1388, 1389,

1391, and 1392 analog servo drive systems. If you are using a 1387 drive,

it must be equipped with 115V ac and the dynamic-braking option. Refer

to appendix D for details on wiring one of these AB drives to your control.

Table 3A.H lists references to help you select a suitable drive system.

Table 3A.H

Compatible A-B Drives

A-B Drive

Publication No.

Title

1386

1386-5.0

DC PWM Servo Drive (Multi-Axis)

1387

1387-5.0

DC Spindle Drive (Analog) Product Data

1388

1388-5.1

DC PWM Servo Drive (Single Axis) Product Data Series B

1389

1389-5.1

AC Servo Amplifier (Multi-Axis) Product Data

1391

1391-5.0

AC Servo Amplifier (Single Axis) Product Data

1392

1392-5.1

High Performance AC Drive (460V and 230V) Product Data

The processor module provides a + 10V analog velocity command output

for up to four drive amplifiers. This analog voltage is generated from a

12-bit value plus an additional sign bit (13 bits total) and interfaces to drive

amplifiers with a 2K-20K ohm range.

Servo Motors are used to drive the axes of the machine because of their

ability to respond accurately to small positioning commands. Typically

they have two feedback devices mounted on them, one that provides

position data to the processor module, and one that provides velocity data

to the servo amplifier.

Any servo motor that meets the needs of your machine tool and is

compatible with the servo amplifier that you will be using, can be used

with the control.

Allen-Bradley has a wide selection of servo motors that can be used with

the Allen-Bradley servo amplifiers. These motors can also be used with

other servo amplifiers that are compatible with the servo interface. For

more information on Allen-Bradley servomotors, contact your

Allen-Bradley sales representative.

Motor installation and maintenance will depend on the type of motor used

and the hardware to which it is mounted. For more specific information,

refer to the documentation prepared by your drive and motor

manufacturers.

3A.3

Analog Servo Amplifiers

3A.4

Analog Servo Motors

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