OMRON C500-PRW05-V1 PLC

OMRON C500-PRW05-V1 PLC

Expansion I/O Backplane

Section 2

The Expansion I/O Backplane shown in the following diagram, can be used

to expand the C500 PC. An Expansion I/O Rack is just like a CPU Rack, ex

cept a CPU is not mounted. However, a Power Supply is needed for each

Expansion I/O Rack. There are three models of Expansion I/O Backplane

available.

I/O Power Supply

Just as a Power Supply must be mounted to the CPU Rack, a Power Supply

must also be mounted to each Expansion I/O Backplane. There are two

Power Supplies available; 100 to 120/200 to 240 VAC and 24 VDC, both of

which are explained below. For details, refer to Appendix B Specifications.

Model

6.5 A Not provided

Be sure to keep the total power consumed by all the Units mounted

on a Rack within the value stated in the table above. For example, do

not mount I/O Units with a total current consumption of 7A to a Rack

supplied by a 7 A Power Supply. As shown in the table above, the

available current for I/O Units is only 6.5 A. For details concerning

current consumption, refer to Section 4 System Connections

Connect a 100 to 120 VAC or 200 to

240 VAC power source

Short these terminals to select 100 to

120 VAC. Open them to select 200 to

240 VAC.

Ground this terminal at a resistance

of less than 100 Ω to improve noise

immunity or prevent electric shock.

Ground this terminal at a resistance

of less than 100 Ω to prevent electric

shock.

Use these terminals to supply power

to DC Input Units. Use a separate

Power Supply if the I/O Unit operate

on more than 0.8 A. If a current higher

than 0.8 A is output, the PC stops.

These terminals are used to supply

external DC Input Units. If the Unit re

quires more than 0.8 A a separate

supply must be used. The PC shuts off

automatically if a current of more than

0.8 A is drawn from the supp

Connect a 24-VDC power source (2.3

A min.)

Ground this terminal at a resistance

of less than 100 Ω to improve noise

immunity or prevent electric shock.

Ground this terminal at a resistance

of less than 100 Ω to prevent electric

shock.

I/O Control Unit

Section 2

An I/O Control Unit must be mounted to the CPU Rack in order to connect

the CPU Rack to an Expansion I/O Rack. An I/O Control Unit can be

mounted even if no Expansion I/O Rack is used.

2-6

2-7

A-shape

I/O Interface Unit

An I/O Interface Unit is needed on each Expansion I/O Rack, in order to ex

pand the PC. If there is not an I/O Interface Unit on each Expansion I/O

Rack, data communication cannot take place. The I/O Interface Unit is

mounted to the leftmost I/O position on the Expansion I/O Backplane.

I/O Units

I/O Units come in 5 shapes; A-shape, B-shape, C-shape, D-shape, and E

shape. Refer to Appendix B Specifications for the dimensions of each Unit