Main and auxiliary feedback combinations, Interpolated analog (sine/cosine) encoder input, Resolver input – ElmoMC AC Input Digital Servo Drives-Bassoon Cable Kit User Manual

Page 35: Typical applications

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Cornet Installation Guide

Installation

MAN-CORIG (Ver. 1.502)

www.elmomc.com

35

1.13.6. 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 Cornet, 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 A

Feedback B Ports B1 and B2

YA[4] = 4

YA[4] = 2

YA[4] = 0

Incremental

Encoder Input

FEEDBACK B

FEEDBACK A

ANALOG INPUTS

DIGITAL INPUTS

CAN

DIGITAL OUTPUTS

RS-232

COR0001A

CAN

Incremental

Encoder

B1

- output

B2

- output

same as B1

Differential

and

Buffered

Main

Encoder

Signal

A

- input

FEEDBACK B

FEEDBACK A

ANALOG INPUTS

COMMITTED I/O

COMM. 2

GENERAL I/O

COMM. 1

COR0001A

B1

- input

B2

- output

A

- input

Incremental

Encoder

or

Analog

Encoder

or

Resolver

Differential

or

Single-ended

Auxiliary

Incremental

Encoder

Differential

and Buffered

output of B1

FEEDBACK B

FEEDBACK A

ANALOG INPUTS

COMMITTED I/O

COMM. 2

GENERAL I/O

COMM. 1

COR0001A

B1

- input

B2

- output

A

- input

Differential or

Single-ended

Pulse &

Direction

Commands

Incremental

Encoder

or

Analog

Encoder

or

Resolver

Differential

and Buffered

output of B1

Interpolated

Analog

(Sine/Cosine)

Encoder

Input

FEEDBACK B

FEEDBACK A

ANALOG INPUTS

DIGITAL INPUTS

CAN

DIGITAL OUTPUTS

RS-232

COR0001A

CAN

B1

- output

B2

- output

same as B1

A

- input

Analog

Encoder

Analog Encoder

Position Data

Emulated in

Incremental

Encoder Format

(signals are

quadrature,

differential &

buffered)

Resolver

Input

FEEDBACK B

FEEDBACK A

ANALOG INPUTS

DIGITAL INPUTS

CAN

DIGITAL OUTPUTS

RS-232

COR0001A

CAN

B1

- output

B2

- output

same as B1

A

- input

Resolver

Resolver

Position

Data Emulated

in Incremental

Encoder Format

(signals are

quadrature,

differential &

buffered)

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 B1 serves as an input for the

auxiliary incremental encoder

(differential or single-ended).
Port B2 is used to output

differential buffered Auxiliary

Incremental Encoder signals.
For applications such as Follower,

ECAM, or Dual Loop.

Port B1 serves as an input for

Pulse & Direction commands

(differential or single-ended).
Port B2 is used to output

differential buffered Pulse &

Direction signals.

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