ElmoMC SimplIQ Digital Servo Drives-Guitar Evaluation Board User Guide - Manual (Page 55)

Whistle, Bell Guitar Evaluation Board User Guide Combined Evaluation Board
MAN-EVLBRD-WHI-BEL-GUI (Ver. 1.401)
55
.14.1 Main and Auxiliary Feedback Combinations
The Main Feedback is always used in motion control devices whereas Auxiliary Feedback
is often, but not always used. The Auxiliary Feedback connector on the Whistle Evaluation
Board has two ports (B1 and B2). When used in combination with Main Feedback, the
Auxiliary Feedback can be set, by software, as follows:
Main
Feedback Auxiliary Feedback
YA[4] = 4
(Aux. Feedback: output)
YA[4] = 2
(Aux. Feedback: input)
YA[4] = 0
(Aux. Feedback: input)
Increment
al
Encoder
Input
Main Feedback:
Incremental
Encoder Input
There is no
Auxiliary
Feedback option
when an
Incremental
Encoder is the
Main Feedback
device.
Main Feedback:
Buffered differential
incremental encoder
output
B1
Buffered
Differential
Incremental
Encoder
Input
Main
Feedback:
Incremental
Encoder
or
Analog
Encoder
or
Resolver
or
Tachometer
or
Potentiometer
Input
B2
Differential
Buffered
Encoder
Output of B1
Auxiliary
Feedback: Main
Feedback:
Incremental
Encoder
or
Analog
Encoder
or
Resolver
or
Tachometer
or
Potentiometer
Input
B1
Buffered
Differential
Pulse &
Direction
Commands
Input
B2
Buffered
Differential
Pulse &
Direction
Commands
Output of B1
Auxiliary
Feedback:
Interpolat
ed
Analog
(Sin/Cos)
Encoder
Input
B2 - output
Analog Encoder
position data
emulated in
Differential,
buffered,
incremental
Encoder format
B1 - not available
Main Feedback:
Analog Encoder
Main Feedback:
Buffered output
Resolver
Input
B2 - output
Resolver
position data
emulated in
differential,
buffered,
incremental
Encoder format
B1 - not available
Main Feedback:
Resolver
Potentiom
eter or
Tachomet
er Input

Main Feedback:
Potentiometer or
Tachometer
B2 - output
Resolver or Tachometer
position data
emulated in
differential,
buffered,
incremental
Encoder format
B1 - not available
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