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3.4.5 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 Drum, “FEEDBACK B”
has two ports, Port B1 and Port B2. When used in combination with the Main Feedback port,
“FEEDBACK A”, the ports can be set, by software, as follows:
FEEDBACK B Ports B1 and B2
FEED-
BACK A
YA[4] = 4
YA[4] = 2 YA[4] = 0
Incremental
Encoder
Input
B1 - Output
B2 - output
same as B1
Differential
and
Buffered
Main
Encoder
Signal
Incremental
Encoder
A - input
Interpolated
Analog
(Sin/Cos)
Encoder
Input
A-input
Analog
Encoder
Analog
Encoder
Position
Data
Emulated in
Incremental
Encoder
Format
(signals are
quadrature,
differential
& buffered)
B1- Output
B2- Output
same as B1
Resolver
Input
A-input
Resolver
Resolver
Position
Data
Emulated in
Incremental
Encoder
Format
(signals are
quadrature,
differential
& buffered)
same as B1
B1- Output
B2- Output
Tachometer
Input
A-input
Tachometer
Tachometer
Position
Data
Emulated in
Incremental
Encoder
Format
(signals are
quadrature,
differential
& buffered)
B1- Output
B2- Output
same as B1
Differential
or
Single-ended
Auxiliary
Incremental
Encoder
B1- Input
B2- Output
Differential
and
Buffered
Auxiliary
Encoder
Signal
Incremental
Encoder
or
Analog
Encoder
or
Resolver
or
Tachometer
or
Potentiometer
or
Absolute
Encoder
Differential or
Single-ended
Pulse &
Direction
Commands
Differential
and Buffered
Pulse &
Direction
Signals
B1- Input
B2- Output
Incremental
Encoder
or
Analog
Encoder
or
Resolver
or
Tachometer
or
Potentiometer
or
Absolute
Encoder
*
Drum Installation Guide Installation
MAN-DRUIG (Ver. 1.0)
3-28