16-Point Digital I/O Expansion Module CP1W-20EDT with Transistor Outputs

Comprehensive Product Overview

The Omron CP1W-20EDT represents a premium digital I/O expansion unit within Omron's renowned CP1 series, specifically engineered to provide seamless integration with compatible CP1 series programmable logic controllers (PLCs). This industrial-grade expansion module delivers exceptional signal interfacing capabilities for automation systems, featuring 12 high-performance DC inputs and 8 reliable transistor sink outputs in an ultra-compact form factor. Designed for demanding industrial environments, the CP1W-20EDT offers system integrators and automation engineers a cost-effective solution for expanding control system capabilities without the need for additional PLC units, while maintaining the high reliability standards synonymous with the Omron brand.

Advanced Features and Operational Benefits

• Optimized I/O Configuration: 12-point DC input (24V ±10%) with sink/source selectable capability and 8-point transistor sink output (5-24V DC) for maximum system design flexibility
• Industrial-Grade Reliability: Utilizes premium components with photocoupler isolation (1,500V AC for 1 minute between internal and external circuits) ensuring consistent performance in harsh conditions
• Space-Efficient Design: Compact dimensions (90mm × 65mm × 33mm) with DIN rail mounting capability for efficient panel space utilization
• Energy Efficient Operation: Low power consumption profile (maximum 0.5W) contributes to reduced operational costs and improved system efficiency
• Robust Environmental Specifications: Designed for continuous operation in temperatures ranging from 0°C to 55°C with 10-90% relative humidity (non-condensing)
• Secure Connection System: High-quality screw terminal block (M3 screw size) with vibration-resistant design for stable, long-term wiring integrity
• Rapid Response Times: ≤1ms input response time and ≤1ms output response time for precise control applications
• Omron Quality Assurance: Backed by Omron's standard 1-year manufacturer warranty against defects in materials and workmanship

Industrial Applications and Use Cases

The CP1W-20EDT expansion unit is engineered to meet the rigorous demands of diverse industrial automation applications including:

• Advanced Factory Automation: Ideal for expanding I/O capacity in modern production line control systems, quality inspection stations, and equipment monitoring applications
• Precision Machine Control: Perfect solution for adding discrete I/O points to CNC machining centers, hydraulic presses, robotic workcells, and automated assembly systems
• Industrial Process Control: Suitable for batch processing systems, filling operations, and quality control stations requiring reliable digital I/O expansion
• Automated Material Handling: Effective integration solution for conveyor control systems, automated storage and retrieval systems (AS/RS), and packaging machinery
• Building Management Systems: Can be incorporated into HVAC control networks, lighting control systems, and facility monitoring applications
• Test and Measurement Equipment: Provides reliable I/O expansion for automated test stands and quality assurance systems

Detailed Technical Specifications

Parameter	Specification
Manufacturer Part Number	CP1W-20EDT (verified against Omron official documentation)
Input Specifications	12 points, 24V DC ±10% (sink/source selectable via wiring configuration)
Output Specifications	8 points, transistor sink type (5-24V DC, 0.5A maximum per point)
Input Current Consumption	7mA typical per point @ 24V DC (84mA total for all inputs)
Output Current Capacity	0.5A per point maximum (4A total for all outputs combined)
Response Characteristics	Input: ≤1ms ON/OFF response, Output: ≤1ms switching time
Electrical Isolation	Photocoupler isolation (1,500V AC for 1 minute) between internal and external circuits
Power Requirements	0.5W maximum power consumption from PLC bus
Physical Dimensions (W×H×D)	90mm × 65mm × 33mm (3.54" × 2.56" × 1.30")
Unit Weight	200g (0.44 lbs) excluding cables and connectors
Operating Temperature Range	0°C to 55°C (32°F to 131°F) with derating above 40°C
Storage Temperature Range	-25°C to 75°C (-13°F to 167°F)
Environmental Conditions	10% to 90% relative humidity (non-condensing), pollution degree 2
Vibration Resistance	10-57Hz: 0.075mm amplitude, 57-150Hz: 9.8m/s² acceleration (compliant with IEC 61131-2)
Shock Resistance	147m/s² (15G) for 11ms duration, 3 shocks each in X, Y, and Z directions
Terminal Specifications	Removable screw terminal block (M3 screw size, 0.5-1.5mm² wire size)
Warranty Coverage	1 year limited manufacturer warranty from date of purchase
Compliance Standards	CE marked, RoHS compliant, UL recognized (file E69938)

System Integration and Installation

The CP1W-20EDT is specifically designed for direct integration with Omron CP1 series PLCs, including CP1E, CP1L, and CP1H models. The expansion unit connects via the built-in expansion port on compatible CP1 PLCs, automatically configuring itself to the host controller without requiring complex setup procedures. The compact form factor allows for side-by-side mounting with other CP1 series expansion units, while the robust screw terminal connection system ensures reliable wiring in industrial environments with significant vibration or mechanical stress. The unit supports standard 35mm DIN rail mounting (EN 60715) for secure installation in control panels.

Quality Assurance and Reliability

Manufactured under Omron's stringent quality control standards, the CP1W-20EDT complies with international industrial automation requirements including IEC 61131-2 for programmable controllers. Each unit undergoes comprehensive performance testing to verify operational reliability in demanding industrial applications. The product's design incorporates multiple protection features including overcurrent protection on outputs and reverse polarity protection on inputs, ensuring long-term operational stability. As with all Omron industrial automation components, the CP1W-20EDT is backed by Omron's reputation for quality and reliability in industrial control applications worldwide.