Rockwell Automation 1771-SF1 SERVO INT MOD - Manual (Page 3)

Chapter
1
1Ć1
Introduction
The Allen-Bradley Servo Interface Module (Cat. No. 1771-SF1) when
used with the Micro Controller (Cat. No. 1771-UC1) can control single
axis positioning systems such as found in machine tool applications.
When combined with a single motor variable speed drive package and a
full quadrature encoder, this microprocessor-controlled servo drive system
(Figure 1.1) can be programmed to cycle through precise speed and
position profiles.
Figure 1.1
Typical MicroprocessorĆBased Servo Control System
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Single-Motor
User Program
EPROM
Plug-in EPROM
1771- 1771-
Amplifier Inhibit
Motor Current Inhibit
Velocity
Common
Channels A & B, Channels
(Position Loop, 50KHz Max)
10399
Shaft
Differential
Tach.
(Velocity Loop)
Servo
Return
Controlled Power
Servo
Drive
User Application
Shaft
Motor
Encoder
Line Driver
Drive Package
+ 10V
-
Programming
Unit
UC1
Micro
Con-
troller
SF1
Servo
Inter-
face
Module
Amplifier
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A & B, Marker, Marker
Description