Omron CJ2 User Manual

5 Installation
5-24
CJ2 CPU Unit Hardware User’s Manual
z Wiring
The following wire gauges are recommended.
z PLC Input Unit Wiring Example
Connect the positive terminals of the 24-VDC power supply to the Input Unit common (COM) termi-
nals.
Connect the negative terminal of the 24-VDC power supply to the Input Unit common (COM) termi-
nal.
z External Display Device Connection Example
The alarm output (replacement notification output) is an NC contact. Therefore, wire the alarm out-
put using an NC contact or other means to turn ON an error indicator or LED display as shown in the
following diagram.
Recommended
wire size
Use
Pushing
strength (clamp-
ing operation)
Pulling strength
(holding force)
Length of
stripped section
AWG 22 to 18
(0.32 to 0.82 mm
2
)
Connecting to PLC terminal
block models
30 N max. 30 N min. 7 to 10 mm
AWG 28 to 24
(0.08 to 0.2 mm
2
)
Connecting to PLC connector
models
10 N min.
AC100-240V
INPUT
NC
NC
L1
L2/N
CJ1W-PA205C
POWER
TEST
ALARM OUTPUT
DC30V, 50mA
NORMAL:ON
ALARM OFF
L
IN0
IN(N)
IN(N+1)
COM
CPU Unit
CJ1W-PA205C
IN Unit
CJ1W-ID2@@
24-VDC power supply
IN0
IN(N)
IN(N+1)
COM
AC100-240V
INPUT
NC
NC
L1
L2/N
CJ1W-PA205C
POWER
TEST
ALARM OUTPUT
DC30V, 50mA
NORMAL:ON
ALARM OFF
L
CJ1W-PA205C CPU Unit
IN Unit
CJ1W-ID2@@
24-VDC power supply

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)