BEI Sensors Encoder Signal Broadcaster Module User Manual

Page 2

CONNECTION INSTRUCTIONS (for Isolated Circuit and Anti-Dither Functions)

924-02097-001 Rev 3/09

www.beiied.com

-2807

2726

7230 Hollister Avenue, Goleta, California 93117

Tel: 800-350-2727 Fax: 800-960-

A A

A/ A/

B B

B/ B/

Z Z

Z/ Z/

A
A/

B
B/

REG

Encoder Differential Line Driver Out

Optical Isolator

put

Figure 1
Standard Connection to
Optical Isolator Module

Single Ended Line Driver (See Figure 2)

Differential Line Driver (See Figure 1)

Encoder signal from 5 VDC to 24 VDC (must specify
the voltage when ordering)

Connect broadcaster A to optical isolator module input
channel A, B to B and Z to Z. Connect the A/, B/, and
Z/ inputs of the optical isolator to circuit common of
the encoder supply. Single ended operation is limited
to shorter cable runs and is more susceptible to noise.

Encoder signals from 5 VDC to 24 VDC (must
specify the voltage when ordering)

This is the preferred type of encoder output as it
has the best noise immunity. Connect each
encoder signal to its like input (A to A, A/ to A/,
etc).

B B

Z Z

A
A/

B
B/

REG

Encoder Sin

Optical Isolator

gle Ended Line Driver Output

Figure 2
Connection Diagram
Single Ended Line Driver

Broadcaster

Broadcaster Module

Encoder
Supply

Open Collector with or without Internal Pull-
up Resistors (See Figure 3)

Encoder NPN (sinking) outputs.

Connect encoder output A to optical isolator module
input A/, B to B/ and Z to Z/. Connect the A, B, and Z
inputs of the broadcaster to the auxiliary output terminal
on the broadcaster module. This connection results in a
logic inversion within the broadcaster module. To
compensate for the logic reversal, swap A for A/, B for
B/, and Z for Z/ at the broadcaster outputs.

A or A/

B or B/

Z or Z/

A
A/

B
B/

REG

Encoder O

Optical Isolator

pen Collector Output

Figure 3
Connec
Open

Coll

ion Diagram

ector to Optical Modu

Broadcaster

AUX

Optical Regulation

Power Supply