Omega Products CIO-ERB08 User Manual
Electromechanical Relay Racks
for the CIO-DIO Family of
Digital I/O Boards
U 48, 24 and 8 Channel
Models
U Direct Connection to the
CIO Family of
Plug-in Boards
U On-Board Buffers
U Powered by 5 Vdc
CIO-ERB24
CIO-ERB48
CIO-ERB08
The CIO-ERB is a family of
electromechanical relay racks
designed to be compatible with the
CIO-DIO family of digital I/O plug-in
boards. There are three models in
the family: the CIO-ERB48 contains
48 relays, the CIO-ERB24 contains
24 relays and the CIO-ERB08
contains 8 relays. All relays are
form C electromechanical capable
of handling 6 A at 24 Vdc or 3 A at
120 Vac. Field wiring is accomplished using screw terminals for
each relay. The screw terminals
allow you to connect signals via
12-22 AWG wire. The digital I/O
board connects to the CIO-ERB
racks via a standard 37 conductor
cable, or 50 conductor cable
depending on the CIO-ERB model.
CIO-ERB08
The CIO-ERB08 is an 8 channel
electromechanical relay board.
It features 8 form C relays. Field
connections are made through
screw terminals. The connection
to the digital I/O board is through
a standard 37 pin D connector. A
second connector is provided as a
pass through. The CIO-ERB08 can
connect directly to a CIO-DIO24,
CIO-DIO24H or CIO-DIO24/CTR3
using a C37FF-2 cable.
CIO-ERB24
The CIO-ERB24 is a 24 channel
electromechanical relay board. It
provides connection to the digital
I/O board using either a 37 or 50
pin connector. The 37 pin connector
is used to connect to 24 channel
digital I/O boards such as the
CIO-DIO24, CIO-DIO24H and CIODIO24/CTR3. The C37FF-2 cable
may be used for connection to
these boards. The 50 pin connector
is used to connect to the
CIO-DIO48, 96 and 192. The
C50FF cable is used for the
connection. Since the 50 pin connectors on the digital I/O boards
carry 48 digital I/O lines, a second
50 pin connector is located on the
CIO-ERB24 to connect a second
CIO-ERB24. The second connector,
labeled “OUT”, swaps the digital I/O
CIO-ERB Series
$
119
Basic Unit
H-161
Specifications
Relays: 48, 24 or 8 SPDT, FORM C
Contact Material: Gold overlay silver
Contact Rating:
28 Vdc @ 6 A, 120 Vac @ 5 A
Operate Time: 20 mSec.
Release Time: 10 mSec.
Power Consumption
(max with all relays active):
CIO-ERB08 = 0.5 A @5 V,
CIO-ERB24 = 1.45 A @5 V,
CIO-ERB48 = 2.95 A @5 V
Dimensions: 17" x 4.50" (43.20 x
11.43 cm) (CIO-ERB48 & 24), 9" x
4" (22.86 x 10.16 cm) (CIO-ERB08)
Rack Digital I/O Boards Cable
CIO-ERB48 CIO-DIO192, CIO-DIO96, CIO-DIO48 C50FF-2
CIO-ERB24 CIO-DIO192, CIO-DIO96, CIO-DIO48 C50FF-2
CIO-ERB24 CIO-DIO24, CIO-DIO24H, CIO-DIO24/CTR3 C37FF-2
CIO-ERB08 CIO-DIO24, CIO-DIO24H, CIO-DIO24/CTR3 C37FF-2
To Order
(Specify Model Number)
Model Number Price Description
CIO-ERB48 $349 48 channel electromechanical relay board
CIO-ERB24 249 24 channel electromechanical relay board
CIO-ERB08 119 8 channel electromechanical relay board
All CIO-ERB boards include a 10' power adapter cable.
OMEGACARE
SM
extended warranty is available for models shown on this page. Ask your sales
representative for full details when placing orders.(this copy should be on system)
Ordering Example: CIO-ERB48,OMEGACARESM1 year extended warranty (adds 1 year to
standard 3 year warranty) and C50FF-2 cable: $349 + 35 + 25 = $409
.
Model Number Price Description
C37FF-2 $25 2' cable, 37 pin D connectors
C50FF-2 25 2' cable, 50 pin header connectors
Accessories
Digital I/O Board Compatibility Guide
37 PIN CONNECTOR ON CIO-ERB08
50 PIN CONNECTOR ON CIO-ERB24
50 PIN CONNECTOR ON CIO-ERB48
37 PIN CONNECTOR ON CIO-ERB24
lines so they are in the correct
position for the next CIO-ERB24.
CIO-ERB48
The CIO-ERB48 is a 48 channel
relay board designed for high density applications. The 50 pin connector is laid out to connect directly to
the CIO-DIO48, 96 & 192 with a
C50FF-2 cable.
BUFFERS & PULL-DOWNS
The CIO-ERB inputs, from the digital
I/O board, are pulled to a steady
state by circuitry on the board, so
they will not randomly open or close
on power-up. Also, buffer/drivers
on board accept signals from simple
8255 type digital I/O boards.
POWERED FROM THE PC
The CIO-ERB racks do not require
110 Vac power. They run on the
personal computer’s 5 V power
supply or an external 5 V supply.
Power is connected through a 4 pin
connector, just like that found on all
PC power supplies.
CONTROL WIRING
The CIO-ERB racks have screw
terminals for connecting your field
wiring to the relays. Each relay has
three connections; Common,
Normally Open and Normally
Closed. The screw terminals are
high-quality jaw type that will not
bind when removing wires. Wire
gauges 12-22 AWG may be used.
INDUCTIVE LOAD WARNING!
The CIO-ERB boards are excellent
for switching inductive loads, but
only with the correct DIO board.
Do not use 82C55 based DIO
boards because these may be reset
by the ‘inductive kick’. Choose
instead the new CIO-DO48H, 96H
or 192H, which cannot be reset.
H
H-162
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