Ac servomotors, Chapter objectives, Introduction – Rockwell Automation 1391 USER MNL/DIGITAL AC SERVO DR User Manual

Page 85: 1326 ac servomotors, Chapter

Chapter

9-1

1326 AC Servomotors

Chapter Objectives

Chapter 9 describes the operation of a standard 1326 AC Servomotor with
the enhanced capabilities of a Bulletin 1391-DES Digital AC Servo Drive.
Refer to the 1326 AC Servomotor Product Data for further information on
Allen-Bradley AC Servomotors.

Introduction

The 1391-DES provides additional energy to the 1326 motor, allowing it to
operate at higher speeds without a reduction of torque.

In general, the 1326 motor will follow the speed–torque curve shown in
Figure 9.1

Figure 9.1
Typical Bulletin 1326 Speed–Torque Curve

ЗЗЗЗЗЗ

ЗЗЗЗ

ЗЗЗЗЗЗ

ЗЗЗЗЗЗЗЗЗЗЗ

ЗЗЗЗ

ЗЗ

ЗЗЗЗ

ЗЗЗ

100

120

160

200

240

280

Speed

(% rated rpm)

Torque (% rated)

75%

70%

(Tc)

(Tp)

Intermittent Operation

Rated Operation

Peak Torque with

Nominal Input

Line Voltage

1391-DES Peak Torque

with Nominal 15% Low

Input Line Voltage

1391-DES Rated Speed

ÇÇ

1391-DES Rated Operation

1391-DES Intermittent Operation

100

300

1391B Rated Speed

Standard Peak Torque

with Nominal 15% Low

Input Line Voltage