Reliable Power for Modicon Quantum Systems
Industrial control systems demand stable, uninterrupted power to maintain uptime and protect sensitive electronics. The Schneider 140CPS21400C power supply module from the Modicon Quantum series addresses this need with a robust 24V DC input (20...30V DC range) and a regulated 5.1V DC output capable of delivering up to 8A summable current. Whether you are upgrading an existing Quantum rack or designing a new automation cell, this module ensures consistent power delivery even under challenging conditions.
Technical Specifications Breakdown
Key parameters for the 140CPS21400C are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Product Line | Modicon Quantum |
| Input Voltage | 24 V (20...30 V) DC |
| Input Current | 3800 mA |
| Inrush Current | 14 A at 20 V; 25 A at 24 V |
| Output Voltage | 5.1 V DC |
| Power Supply Output Current | 8 A summable |
| Associated Fuse Rating | 5 A |
| Max. Input Power Interruption | 100 ms; 1 ms at 20 V |
| Ambient Air Temperature for Operation | 0…60 °C |
| Operating Altitude | <= 5000 m |
| Relative Humidity | 95 % without condensation |
| Resistance to Electromagnetic Fields | 10 V/m at 80…2000 MHz |
| Resistance to Electrostatic Discharge | 4 kV |
Industry Applications
This power supply module is commonly deployed in discrete manufacturing, process control, and material handling systems where Modicon Quantum racks serve as the central controller. The summable 8A output allows it to power multiple I/O modules simultaneously, reducing the need for additional power supplies. Its wide input voltage tolerance (20...30V DC) makes it suitable for facilities with fluctuating DC bus voltages, while the 100 ms interruption tolerance helps ride through momentary dips without system resets.
Installation & Setup Guidance
Mount the module in a standard Quantum rack slot. Ensure the input voltage is within the 20...30V DC range before connecting. Use a slow-blow 5A fuse on the input line as specified. The module provides a green LED for power OK indication. For systems with high inrush current (e.g., multiple modules powering up simultaneously), verify that the upstream DC supply can handle the 25A inrush at 24V. No special wiring beyond standard Quantum backplane connections is required.
Maintenance & Reliability
The 140CPS21400C includes conformal coating (Humiseal 1A33) for protection against moisture and contaminants. Operate within 0…60 °C and below 5000 m altitude to maintain full performance. Periodically inspect the module for dust accumulation and ensure ventilation around the rack. The internal output overvoltage and overload protection reduce the risk of damage from downstream faults.
Compatibility & Integration
This module is designed for the Modicon Quantum automation platform. It integrates seamlessly with other Quantum power supplies, CPU modules, and I/O cards. The alarm output (1 NC contact, 6A at 220V) provides a power supply fault signal that can be wired to a PLC input for remote monitoring. The module carries CE, cUL, and FM Class 1 Division 2 certifications, confirming its suitability for hazardous locations.
Selection Guide & Purchasing Advice
When selecting a replacement or spare power supply for your Quantum system, verify that the input voltage and output current match your rack's requirements. The 140CPS21400C is ideal for racks needing 5.1V DC at up to 8A. At SpareTechPLC, we stock this module and offer fast shipping. Please verify current lifecycle status and availability with SpareTechPLC before ordering.
Troubleshooting & Common Issues
If the green PWR OK LED is off, check the input voltage and fuse. A blown fuse may indicate a downstream short circuit. If the module fails to power the rack, measure the output voltage at the backplane; it should be 5.1V DC. In high-humidity environments, ensure the conformal coating is intact. For persistent faults, consult the Quantum system manual or contact SpareTechPLC support.
