Yaskawa CPS-IONB DC Power Supply Module

The Yaskawa CPS-IONB is a dedicated DC power supply module designed to provide stable, regulated power to Yaskawa ION (Intelligent Output Network) bus systems, commonly used in motion control and PLC‑based automation platforms. This module converts an AC input (typically 100‑240 V AC) or a higher DC bus voltage into a clean, isolated 24 V DC output, used to power CPU modules, digital I/O cards, and communication interfaces within the ION network architecture.

The CPS-IONB features a compact, rack‑mountable design that integrates seamlessly with other ION‑series components. It includes comprehensive protection against overvoltage, overcurrent, and short‑circuit faults, ensuring the safety of downstream modules. Its high efficiency (over 85%) minimizes heat dissipation, allowing operation in confined control cabinets without excessive cooling requirements.

Technical Specifications

• Input voltage: 100‑240 V AC (50/60 Hz) or 120‑340 V DC (depending on configuration)

• Output voltage: 24 V DC (regulated, ±5%)

• Output current capacity: 5 A (continuous)

• Maximum output power: 120 W

• Efficiency: > 85% at full load

• Ripple and noise: ≤ 100 mV peak‑to‑peak

• Hold‑up time: ≥ 20 ms at nominal input

• Protection: Overvoltage (crowbar), overcurrent (hiccup mode), short‑circuit, thermal shutdown

• Isolation: 3000 V AC (input to output)

• Status indicators: AC power ON (green), DC output OK (green), Fault (red)

• Connections: Spring‑clamp terminal blocks (input and output)

• Dimensions: 120 x 75 x 110 mm (H x W x D)

• Operating temperature: 0°C to +55°C

Key Functional Features

• Universal AC input: Automatically adjusts to worldwide AC mains voltages, simplifying global equipment deployment.

• Parallel operation capability: Two modules can be connected in parallel for N+1 redundancy, increasing system availability.

• Active power factor correction (PFC): Reduces harmonic distortion and improves overall power factor for energy efficiency.

• Diagnostic output signal: A dedicated alarm relay signals loss of output voltage to the PLC for fault management.

Application Areas

• Motion control systems: Powering Yaskawa servo controllers and PLC CPUs in multi‑axis machines.

• Industrial robotics: Supplying 24 V DC logic power to robot controllers and peripheral devices.

• Automation panels: Centralized power distribution for sensors, relays, and operator interfaces.

• Machine tool cabinets: Providing clean power to CNC control modules.

Installation and Cooling

Mount the CPS-IONB onto the designated ION rack or DIN rail using the provided clips. Ensure adequate clearance (at least 50 mm above and below) for natural convection cooling. The input power cable must be sized according to the current draw and protected with a 6‑10 A circuit breaker. The 24 V DC output wiring should be sized to minimize voltage drop over the cable run. Grounding must be performed at the dedicated PE terminal, and the module should be installed in a cabinet with IP54 or higher rating in dusty environments.

Compliance and Safety

The CPS-IONB is CE marked and UL recognized (cULus). It complies with EN 61010‑1 safety standards and meets the EMC directive (EN 61000‑6‑2/‑4). The module is RoHS compliant and suitable for pollution degree 2 installations.

Conclusion

The Yaskawa CPS-IONB DC power supply module is a reliable, efficient power source for ION‑based control systems. Its robust design, high output capacity, and comprehensive protection features ensure stable operation of critical automation components, reducing downtime and safeguarding hardware.