Omron PLC CJ1 Series DC Input Unit CJ1W-ID231

Series#: Omron

Product Details

OMRON CJ1W-ID231/ID232 – High-performance DC Input Unit for OMRON CJ1 Series PLC systems.
Offers 16 input points per module (ID231) or 32 input points (ID232) for flexible I/O configurations.
Accepts 24 VDC input signals with high-speed response and noise immunity for industrial environments.
Compact design with front-mounted LED indicators for easy diagnostics and maintenance.
Supports common input voltage range of 24 VDC ±10%, with sink/source wiring compatibility.
Ensures reliable operation in harsh conditions with industrial-grade isolation and surge protection.
Guaranteed 100% Original factory condition, offering fast and secure worldwide delivery.

Specification

The OMRON CJ1W-ID231/ID232 is a high-density DC input unit designed for the CJ1 Series programmable logic controllers, ideal for discrete sensor and switch monitoring in automated manufacturing lines. Engineered for robust performance, the ID231 variant provides 16 input channels while the ID232 offers 32 channels, both operating at 24 VDC with opto-isolated inputs to prevent electrical noise interference. This unit features a response time of less than 10 ms, making it suitable for high-speed counting and position detection applications. With a rated input voltage of 24 VDC ±10% and input current of 7 mA per point (typical), it ensures accurate signal detection even in electrically noisy environments. The module is hot-swappable, supports common sink or source wiring, and includes diagnostic LEDs per channel for real-time status monitoring. Its compact form factor fits seamlessly into CJ1 racks, conserving panel space while delivering reliable I/O expansion.

Parameter	Specification (CJ1W-ID231/ID232)
Model	CJ1W-ID231 (16 inputs) / CJ1W-ID232 (32 inputs)
Input Type	DC Sink/Source (24 VDC)
Rated Input Voltage	24 VDC ±10% (allowable range: 20.4 to 26.4 VDC)
Input Current	7 mA per point (at 24 VDC)
ON Voltage	≥ 15 VDC
OFF Voltage	≤ 5 VDC
Response Time (ON to OFF)	≤ 10 ms (typical), ≤ 20 ms (max)
Response Time (OFF to ON)	≤ 10 ms (typical), ≤ 20 ms (max)
Isolation Method	Opto-isolated per channel (500 VAC, 1 minute)
Number of Inputs	16 (ID231) / 32 (ID232)
Common Terminal	1 common per 16 points (ID231: 1 common; ID232: 2 commons)
Indicators	LED per input (ON/OFF status)
Power Consumption	5 VDC from backplane: 50 mA max (ID231), 80 mA max (ID232)
Operating Temperature	0°C to 55°C (32°F to 131°F)
Storage Temperature	-20°C to 75°C (-4°F to 167°F)
Humidity Range	10% to 90% RH (non-condensing)
Vibration Resistance	10 to 57 Hz: 0.075 mm amplitude; 57 to 150 Hz: 9.8 m/s²
Shock Resistance	147 m/s² (15g) for 11 ms
Weight	Approx. 120 g (ID231) / 140 g (ID232)
Dimensions (W x H x D)	31 x 90 x 65 mm (ID231) / 31 x 90 x 65 mm (ID232)
Mounting	DIN rail or direct screw mounting on CJ1 rack
Certifications	CE, UL, cUL, RoHS compliant

Input Protection: Built-in surge suppression and reverse polarity protection for each input channel.
Wiring Compatibility: Supports both sink (NPN) and source (PNP) sensor outputs via common terminal configuration.
Diagnostic Features: Front-panel green LEDs indicate input status per channel; power LED for module health.
Environmental Ratings: Rated for industrial environments with IP20 enclosure protection (panel interior).
Compatibility: Fully compatible with CJ1, CJ1M, and CJ2 series CPU racks; no additional software configuration needed.
Hot-Swap Capability: Can be inserted or removed without powering down the PLC system (requires proper grounding).