Omron CJ2 User Manual

3 Nomenclature and Functions
3-20
CJ2 CPU Unit Hardware User’s Manual
z Example: CJ1W-PD025
z Example: CJ1W-PD022
Supply 100 to 240 VAC (allowable: 85 to 264 VAC).
Note The CJ1W-PA205R, CJ1W-PA205C, and CJ1W-PA202 have a wide input range, so they do not have voltage
switching terminals.
Supply 24 VDC.
Ground to a resistance of 100 Ω or less to increase noise resistance and avoid electric shock.
AC Input
DC Input
Model
Allowable power supply voltage
fluctuation range
CJ1W-PD025 19.2 to 28.8 VDC (±20%)
CJ1W-PD022 21.6 to 26.4 VDC (±10%)
LG
POWER
PD025
DC24V+
INPUT
NC
NC
POWER Indicator
Lit when 5 V are being output from the Power Supply Unit.
External connection terminals
DC input
LG
GR
POWER
PD022
NC
NC
NC
DC24V
INPUT
+
POWER Indicator
Lit when 5 V are being output
from the Power Supply Unit.
External
connection
terminals
DC
input
NC
GR

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)