ElmoMC AC Input Digital Servo Drives-Bassoon - Manual (Page 34)

Bassoon Installation Guide Installation
MAN-BASIG (Ver. 1.502)
www.elmomc.com
34
3.5.6. Main and Auxiliary Feedback Combinations
The Main Feedback is always used in motion control devices whereas the Auxiliary Feedback is
often, but not always used. The Auxiliary Feedback port, FEEDBACK B (J2), can be used in
combination with the Main Feedback port, FEEDBACK A (J3). Feedback B can be set by software
as follows:
Table 6: Main Feedback –Auxiliary Feedback Combinations
Feedback
A (J3)
Feedback B (J2)
YA[4] = 4 YA[4] = 2 YA[4] = 0
Incremental
Encoder
Input
B - output
Differential
and
Buffered
Main
Encoder
Signal
Incremental
Encoder
A - input
A - input
Incremental
Encoder
or
Analog
Encoder
or
Resolver
B - input
Differential
or
Single-
ended
Auxiliary
Incremental
Encoder
B - input
Differential
or
Single-
ended
Pulse &
Direction
Commands
A - input
Incremental
Encoder
or
Analog
Encoder
or
Resolver
Interpolated
Analog
(Sin/Cos)
Encoder
Input
B - output
Analog
Encoder
Position
Data
Emulated in
Incremental
Encoder
Format
(signals are
quadrature,
differential
& buffered)
Analog
Encoder
A - input
Resolver
Input
B - output
Resolver
Position
Data
Emulated in
Incremental
Encoder
Format
(signals are
quadrature,
differential
& buffered)
Resolver
A - input
Typical
Applications  Any application where the main
encoder is used, not only for the
drive, but also for other purposes
such as position controllers
and/or other drives.
 Analog Encoder applications
where position data is required in
the Encoder’s quadrature format.
 Resolver applications where
position data is required in the
Encoder’s quadrature format.
Any application where two
feedbacks are used by the
drive.
Port B serves as an input for the
auxiliary incremental encoder
(differential or single-ended).
For applications such as
Follower, ECAM, or Dual Loop.
Port B serves as an input for
Pulse & Direction commands
(differential or single-ended).


