CJ1W-PA205R 100-240V AC Power Supply Unit for CJ1 Series PLCs

Omron CJ1W-PA205R Power Supply Unit - Comprehensive Technical Overview

The Omron CJ1W-PA205R represents the gold standard in industrial power supply units, specifically engineered for seamless integration with Omron's CJ Series programmable logic controllers (PLCs). This precision-engineered component delivers exceptionally stable, regulated DC power to ensure flawless operation of your PLC system and all connected I/O modules under the most demanding industrial conditions. Manufactured to Omron's exacting quality standards, this power supply unit features advanced protection circuitry, universal voltage compatibility, and industrial-grade construction that exceeds typical operational requirements for factory automation environments.

Advanced Technical Features and Operational Benefits

• Universal AC Input Voltage: 100-240V AC (±10%) with automatic 50/60Hz frequency detection enables worldwide deployment without requiring region-specific models or voltage converters
• Precision DC Power Delivery: Provides 5V DC output at 3.6A (18W total capacity) with ±5% voltage regulation, ensuring stable power for sensitive PLC electronics even during line fluctuations
• Optimized Thermal Design: Engineered heat dissipation allows continuous operation across the full temperature range (0°C to 55°C) without performance degradation
• Industrial-Grade Protection: Incorporates comprehensive safeguards including overload protection, short-circuit protection, and overvoltage protection to prevent damage to connected PLC components
• Space-Efficient Form Factor: Compact dimensions of 31mm (W) × 90mm (H) × 65mm (D) conform precisely to CJ Series module standards for efficient panel space utilization
• Rugged Mechanical Construction: 200g vibration-resistant design withstands industrial environments with vibration levels up to 10-57Hz at 0.075mm amplitude (IEC 61131-2 compliant)
• Extended Operational Lifespan: High-quality components and conservative thermal design ensure reliable performance throughout the product lifecycle
• Manufacturer Warranty: Backed by Omron's standard 1-year warranty against manufacturing defects

Industrial Applications and Implementation Scenarios

The CJ1W-PA205R power supply unit is specifically designed for mission-critical automation applications where power stability and reliability are paramount:

• Advanced Manufacturing Systems: CNC machine control, robotic workcells, precision assembly systems, and automated inspection equipment
• Continuous Process Industries: Pharmaceutical production lines, food processing systems, chemical plant automation, and water treatment facilities
• High-Speed Packaging Operations: Filling machines, labeling systems, blister packaging equipment, and case packing systems
• Logistics Automation: Automated storage and retrieval systems (AS/RS), conveyor control systems, and sorting equipment
• Building Management Systems: Centralized control of HVAC systems, lighting automation, and energy management installations
• Infrastructure Monitoring: Power distribution monitoring, pipeline control systems, and transportation infrastructure automation

Complete Technical Specifications and Performance Data

Technical Parameter	Detailed Specification
Input Voltage Range	100-240V AC (±10%), auto-ranging
Input Frequency	47-63Hz (auto-sensing)
Output Voltage	5V DC (±5% regulation under all load conditions)
Rated Output Current	3.6A continuous (4.0A peak for 500ms)
Output Power Capacity	18W maximum continuous output
Voltage Ripple	<50mV peak-to-peak (typical)
Efficiency	85% typical at full load (230V AC input)
Inrush Current	20A maximum (at 100V AC input, cold start)
Hold-up Time	10ms minimum at full load (100V AC input)
Start-up Time	500ms maximum (to reach 90% of rated output)
Protection Features	Overcurrent protection, short-circuit protection, overvoltage protection
Isolation Voltage	2000V AC (input to output)
Mechanical Dimensions	31mm (W) × 90mm (H) × 65mm (D) (CJ Series standard)
Weight	200g ±10% (excluding packaging)
Operating Temperature Range	0°C to 55°C (derating required above 40°C)
Storage Temperature Range	-25°C to 65°C
Operating Humidity	10% to 90% RH (non-condensing)
Vibration Resistance	10-57Hz, 0.075mm amplitude (IEC 61131-2 compliant)
Shock Resistance	147m/s² for 11ms duration (IEC 61131-2 compliant)
Cooling Method	Natural convection (fanless design)
Safety Standards	UL, cUL, CE compliant (specific certifications available upon request)
EMC Performance	Complies with EN 61131-2 for industrial environments
MTBF	100,000 hours minimum (calculated per MIL-HDBK-217F)

System Integration and Compatibility Information

The CJ1W-PA205R power supply unit is designed for direct integration with Omron CJ Series PLC systems, including CJ1M, CJ1H, and CJ2M CPU units. The unit connects via the CJ Series backplane interface, providing plug-and-play installation without requiring external wiring or additional components. When installed as part of a CJ Series PLC system, the power supply automatically coordinates with the CPU unit to provide optimal power distribution to all connected modules. The unit's compact form factor allows installation in space-constrained control panels while maintaining adequate clearance for heat dissipation. For optimal performance, Omron recommends maintaining at least 50mm clearance above the unit and avoiding installation in locations subject to direct heat sources or excessive dust accumulation.