PLCs, Power Supplies & Others

Technical Specifications

Power Delivery Architecture

The 140CPS42400 power supply module furnishes stable DC power to Modicon Quantum racks and all connected I/O modules. This unit accepts a wide input range from 19.2 VDC to 36 VDC, making it adaptable to various industrial battery and rectifier systems. It delivers 4.0 A at 5 VDC for logic circuits and 0.5 A at 24 VDC for field devices, providing a total output power of 32 W. Additionally, the module features fully isolated outputs, which effectively prevent ground loops and reduce electrical noise interference.

Energy Storage and Ride-Through

This power supply incorporates substantial internal capacitance that ensures a minimum 10 ms hold-up time during momentary input voltage dips. Such energy storage capacity allows the PLC system to ride through short power interruptions without resetting or losing operational states. Consequently, this feature proves invaluable for critical processes where even brief outages could cause production disruptions or safety hazards.

Physical and Environmental Attributes

Weighing 1.5 kg, the 140CPS42400 matches the standard Quantum form factor of 260 mm x 80 mm x 145 mm for seamless rack integration. Its robust IP20 housing protects internal power components from accidental contact and solid contaminants larger than 12 mm. The module operates efficiently across a broad temperature spectrum from 0 °C to 60 °C, while its 85 % efficiency rating minimizes wasted energy and reduces cabinet heat buildup. For storage, this unit withstands extreme temperatures ranging from –40 °C to +85 °C without performance degradation.

Installation and Configuration

Mount this power supply in the dedicated leftmost slot of any Quantum rack to ensure proper backplane power distribution. Connect the DC input wires to the removable terminal block, observing correct polarity for safe operation. The module automatically regulates output voltages upon power application, requiring no manual adjustments or configuration settings. Users should verify total system current draw does not exceed the 4.0 A 5 VDC capacity, as overloading may trigger built-in overcurrent protection.

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