Main and auxiliary feedback combinations, Ya[4] = 2, Ya[4] = 0 – ElmoMC ExtrIQ Digital Servo Drives-Hornet User Manual
Page 35: Incremental encoder input, Interpolated analog (sine/cosine) encoder input, Resolver input, Potentiometer tachometer input, Typical applications
Hornet and Bee Installation Guide
Installation
MAN-HRBEIG (Ver. 1.304)
35
3.10.1. 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 Hornet/Bee has three bi-
directional pins (CHA, CHB and INDEX). 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)
Incremental
Encoder Input
Aux. Feedback:
There is no
Auxiliary
Feedback
output option
when an
Incremental
Encoder is the
main feedback
device
Main
Feedback:
Incremental
Encoder
Main Feedback:
Incremental
Encoder
or
Analog Encoder
or
Resolver
or
Tachometer
or
Potentiometer
Input
Aux. Feedback:
Singe-ended
Incremental
Encoder Input
Main Feedback:
Incremental
Encoder
or
Analog Encoder
or
Resolver
or
Tachometer
or
Potentiometer
Input
Aux. Feedback:
Singe-ended
Pulse & Direction
Commands Input
Interpolated
Analog
(Sine/Cosine)
Encoder Input
Aux. Feedback:
Analog
Encoder
position data
emulated in
single-ended,
unbuffered
Incremental
Encoder format
Main
Feedback:
Analog
Encoder
Resolver Input
Aux. Feedback:
Resolver
position data
emulated in
single-ended,
unbuffered
Incremental
Encoder format
Main
Feedback:
Resolver
Potentiometer
Tachometer
Input
Aux. Feedback:
There is no
Aux. Feedback
output option
when a
Potentiometer
or Tachometer
is the main
feedback device
Main Feedback:
Potentiometer
or Tachometer
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.
The Auxiliary Feedback port
serves as an input for the
auxiliary incremental
encoder.
For applications such as
Follower, ECAM, or Dual
Loop.
Any application where two
feedbacks are used by the
drive.
The Auxiliary Feedback port
serves as an input for Pulse
& Direction Commands.