Omron CJ2 User Manual

5 Installation
5-4
CJ2 CPU Unit Hardware User’s Manual
5-2 Installation
When the PLC is being installed in a cabinet or control panel, be sure to provide proper ambient condi-
tions as well as access for operation and maintenance.
z Temperature Control
The ambient temperature within the enclosure must be within the operating range of 0°C to 55°C.
When necessary, take the following steps to maintain the proper temperature.
• Provide enough space for good air flow.
• Do not install the PLC above equipment that generates a large amount of heat such as heaters,
transformers, or high-capacity resistors.
• If the ambient temperature exceeds 55°C, install a cooling fan or air conditioner.
z Accessibility for Operation and Maintenance
• To ensure safe access for operation and maintenance, separate the PLC as much as possible
from high-voltage equipment and power machinery.
• The PLC will be easiest to install and operate if it is mounted at a height of 1.0 to 1.6 m above the
floor.
z Improving Noise Resistance
• Do not mount the PLC in a control panel containing high-voltage equipment.
• Install the PLC at least 200 mm (6.5 feet) from power lines.
• Ground the mounting plate between the PLC and the mounting surface.
• When I/O Connecting Cables are 10 m or longer, connect the control panels in which Racks are
mounted with heavier power wires (3 wires at least 2 mm
2
in cross-sectional area).
5-2-1 Installation and Wiring Precautions
Installation in Cabinets or Control Panels
CJ-series
PLC
Control
panel
Fan
Louver
CJ-series
PLC
Power lines
200 mm min.
200 mm min.

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)