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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 CIO-DIO24/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 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-DO48, 96 or 196, which cannot be reset.
Copy (to your hard drive) Instacal setup software for DOS and Windows 3.1 now!
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View an Adobe Acrobat pdf file for more
product info (requires Acrobat Reader).
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