Omron CJ2 User Manual

5-1
CJ2 CPU Unit Hardware User’s Manual
5
This section describes how to install and wire a CJ2 PLC.
5-1 Fail-safe Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5-2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5-2-1 Installation and Wiring Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5-2-2 Installation in a Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
5-2-3 Assembled Appearance and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5-2-4 Connecting PLC Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
5-2-5 DIN Track Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
5-2-6 Connecting CJ-series Expansion Racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
5-3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
5-3-1 Power Supply Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
5-3-2 Wiring CJ-series Basic I/O Units with Terminal Blocks . . . . . . . . . . . . . . . . . 5-25
5-3-3 Wiring Basic I/O Units with Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27
5-3-4 Connecting to Connector-Terminal Block Conversion Units
or I/O Relay Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
5-3-5 Connecting I/O Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32
5-3-6 Wiring with Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-36
5-4 Control Panel Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-39
5-4-1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-39
5-4-2 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-41
5-4-3 Vibration and Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-41
5-4-4 Atmosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-41
5-4-5 Electrical Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42
5-4-6 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-46
Installation

Omron CJ2 Specifications

General

Model	CJ2
Manufacturer	Omron
Type	Programmable Logic Controller (PLC)
CPU Units	Multiple models available (e.g., CJ2M, CJ2H)
Number of I/O Points	Up to 2, 560 points
Communication Ports	Ethernet/IP, EtherCAT, USB, Serial
Expansion	Yes, via I/O Units and Special I/O Units
I/O Control Method	Cyclic Scan, Interrupt
Programming Language	Ladder diagram, structured text, function block diagram, sequential function chart, instruction list
Built-in I/O	Available on some models (e.g., CJ2M)
Ethernet Port	Yes, 1 port (depending on CPU Unit)
Serial Ports	RS-232C, RS-422/485 (configurable)
USB Port	Yes (for programming and monitoring)
Operating Temperature	0°C to 55°C
Storage Temperature	-25 to 70°C
Humidity	10 to 95% RH (non-condensing)
Vibration Resistance	10 to 57 Hz, Amplitude: 0.075 mm, 57 to 150 Hz, Acceleration: 1 G, X, Y, and Z directions, 80 min each
Power Supply Voltage	24 VDC or 100 to 240 VAC (depending on CPU Unit)