System Power and Expansion

B-109

Programmable Controller

CJ1

System Configuration

J Basic Configuration

A CJ1 Series basic configuration consists of a CPU, Power Supply Unit, Basic I/O Modules, Special I/O Modules, CPU

Bus Modules, and an End Cover. Add up the current consumption of all the modules and the CPU according to the

formula on the following page and then select the Power Supply Unit right for the application.

Basic Configuration

Power

Supply

Unit

Memory Card

CPU

Configuration Modules

(Basic I/O Modules,

Special I/O Modules,

CPU Bus Modules)

End Cover

J CPU and Expansion Racks

If the number of modules per rack exceeds 10 or the current consumption is greater than the capacity of the Power Supply

Units, use the CPU and Expansion Rack configuration. This divides the load from the modules across two Power Supply

Units. To ensure communication and automatic channel assignment in programming, order an I/O Control Module for the

CPU Rack and an I/O Interface Module on each Expansion Rack.

CPU Rack

Expansion Rack

(Up to 3 Expansion

Racks Allowed)

Power

Supply

Unit

Memory Card

CPU

I/O Control Module

Configuration Modules

(Basic I/O Modules,

Special I/O Modules,

CPU Bus Modules)

End Cover

Power

Supply

Unit

I/O Connecting Cable

I/O Interface Module

Configuration Modules

(Basic I/O Modules,

Special I/O Modules,

CPU Bus Modules)

End Cover