User guide
CONNECTION INSTRUCTIONS (for Isolated Circuit and Anti-Dither Functions)
924-02097-001 Rev 3/09
Copyright 2009 by BEI Industrial Encoders, 1-800-ENCODER, 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/
+V
0V
A
A
/
B
B
/
Z
/
Z
+V
0V
REG
V
S
0V
Encoder Differential Line Driver Out
Optical Isolator
p
ut
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 susce
p
tible 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
)
.
AA
A/
B B
B/
Z Z
Z/
+V
0V
A
A
/
B
B/
Z/
Z
+V
0V
REG
V
S
0V
Encoder Sin
Optical Isolator
g
le Ended Line Driver Out
p
ut
Figure 2
Connection Diagram
Single Ended Line Driver
Broadcaster 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/
A
A/
B or B/
B
B/
Z or Z/
Z
Z/
+V
0V
A
A
/
B
B/
Z/
Z
+V
0V
REG
V
S
0V
Encoder O
Optical Isolator
p
en Collector Out
p
ut
Figure 3
Connec
Open
t
Coll le
ion Diagram
ector to Optical Modu
Broadcaster
Broadcaster
AUX 5V
Optical Regulation
Power Supply