BEI Sensors Electronic Modules Data Sheet

Electronic Modules

Electronic Modules

Divide-By Module

Divide-By Module

The Divide-By Module option provides a method to divide the effective resolution and signal
frequency of a quardrature output incremental encoder. The Divide By option is available
with the BEI Optical Isolator and Broadcaster. The module receives quardrature counts
from an incremental encoder and divides them by a predetermined integer value. The index

signal is passed through without modication. When combined with the Optical Isolator a

single encoder can be used to feed different control devices, synchronizing their outputs at
different ratios. This can lower parts count and reduce overall system costs.

This module accepts single ended or differential inputs and divides the signal by a factory set
number from 2 to 256. The resulting output signal is a reduced resolution of the input signal.

Ideal for use in machine retrotting and for applications where a different resolution output is
needed from the same encoder source. When ordering, make sure to specify the divide-by

Specications

Power:

The optical isolator can accommodate standard operating voltages from 5 to 28 VDC. It should
never be connected directly to AC power mains. The module draws approximately 75 mA and a
green LED indicates the unit is powered. The optical isolator module does not provide power to
the encoder. Any encoders used in conjunction with this module must be connected to their own
power.

Signal:

Specifying an optical isolator module requires knowledge of three system parameters: the DC

supply voltage available in the system; the encoder output type (logic levels and driver type); and

the input signal specications of the receiving electronics.

Output Code Format From Encoders

Dual Channel in quadrature plus index and complements. Data lines are designated A, B, Z, A/, B/,
Z/ at the module

Output Signal Type From Encoder

Differential line driver (Use Connection Instructions #1)
Single ended line driver (Use Connection Instructions #2)
Single ended open collector with pull-up resistors internal to encoder (Use Connection Instructions
#3)
Single ended, open collector (Use Connection Instructions #3)

Output Signal Voltage Level From Encoder

5 VDC (TTL, RS422 compatible, line driver)
12-15 VDC

24VDC

Frequency Response of Optical Isolator

1 MHz, maximum

Power Requirements For Optical Isolator

5-28 VDC ±5%, 75mA plus load current

Optical Isolator Output Options

28V/V Line Driver, 100mA source/sink, Vout = Vin
28V/5 Line Driver, 100mA source/sink, Vout = 5V (Derate output current to 50mA with supply

voltage > 12VDC)

28V/OC NPN Open Collector, 80mA sink

Protection Level

Supply lines protected against over voltage to 60 volts and reverse voltage

Tristate Outputs

Available as –S Special Feature

amount in the model number (see ordering options below).

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Mechanical

Package dimensions are 114.4 mm high by 99 mm wide by 22.5 mm thick. The package

mounts to a DIN rail type EN 50 022 (35mm X 7.5mm). A length of DIN rail is supplied with
each module. The module simply snaps directly to the DIN rail and is ready to use.

Divide By Module Ordering information FOR ASSISTANCE CALL 800-350-2727

SAMPLE: EM - DR1 - DB2 - 5 - 28V/V

EM DR1

TYPE:

EM = Electronic Module,

DIN Rail mount

PACKAGE STYLE:

DR1 = 114.5 mm x 99mm x 22.5 mm

DB TB

FUNCTION

DB = Divide By

DIVIDE BY FACTOR:

Integer Value from 2 to 256

5

OUTPUT VOLTAGE FROM

ENCODER

3=2.5-3.7 V Logic

5=3.7-6.8 V Logic
15 = 11-19V Logic =
24 = 19-29V Logic =

7230 Hollister Avenue
Goleta, CA 93117

www.beisensors.com

OUTPUT TERMINATION:

TB = Terminal Block

VOLTAGE/OUTPUT:

28V/V:28 V maximum, Vout=Vin
28V/5:28V maximum, Vout=5V
28V/OC:28V maximum, Vout=Open Collector

Tel: [phone]
Fax: [phone]

Specication No.:09166-016

Rev 3-18-14

Electronic Modules

Divide-By Module

Connection Instructions #1

Differential Line Driver

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 optical isolator input (A to A, A/ to A/, etc).

BEI Sensors

Connection Instructions #2

Single Ended Line Driver

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 optical isolator input (A to A, A/ to A/, etc).

7230 Hollister Avenue
Goleta, CA 93117

www.beisensors.com

Tel: [phone]
Fax: [phone]

Specication No.:09166-016

Rev 3-18-14