Rockwell Automation 1771-QC , D17716.5.25 SER/B SERVO POS - Manual (Page 5)

Chapter
1
1Ć1
Using This Manual
This manual shows you how to use the series B Servo Positioning
Assembly (cat. no. 1771-QC). If you have a series A Servo Positioning
Assembly, refer to publication 1771-817.
To use the servo positioning assembly, you must be able to program and
operate an Allen-Bradley PC processor. In particular, you must be able to
program block transfer instructions.
In this manual, we assume that you know how to do this. If you don’t,
refer to the appropriate manual for the PC processor you will be using.
Consult our Publication Index (publication SD499) for a list of our
publications.
Some inconsistency exists throughout industry in the nomenclature used
for components of closed-loop servo positioning systems. Therefore, as
you read this manual, you should be aware of the names we use for these
components.
We refer to the Servo Controller Module (cat. no. 1771-M3) as the
1771-M3 controller.
We refer to the Servo Expander Module (cat. no. 1771-ES) as the
1771-ES expander.
We refer to the device that receives the velocity command signal from
the 1771-ES expander as the servo drive. The servo drive converts ac
power to dc power for the servo motor in proportion to the velocity
command signal. What we refer to here as the servo drive, others may
refer to as a servo controller. So, if you refer to this device as a servo
controller, be aware of our nomenclature as you read this manual.
PC refers to programmable controller.
For an extensive list of terms we use this publication, refer to the glossary
in appendix A.
Manual's Purpose
Audience
Vocabulary