Product Overview
For maintenance engineers managing critical Modicon Quantum systems, the Schneider Electric 140CPS22400C redundant power supply module delivers the reliability needed to prevent unexpected downtime. This component ensures continuous operation by providing a stable 5.1 VDC output with redundancy support, making it a cornerstone of fault-tolerant automation architectures.
Technical Specifications Breakdown
Key parameters for the 140CPS22400C are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Product Line | Modicon Quantum |
| Part Number | 140CPS22400C |
| Voltage Input | 20 to 30 VDC |
| Input Current | 3.8 A max. |
| Inrush Current | 25 A at 24 VDC, 14 A at 20 VDC |
| Output Voltage | 5.1 VDC |
| Output Current | 8 A (redundant) |
| Overvoltage Protection | Internal |
| Local Signaling | LEDs |
| Alarm Output | 1 Normally Closed (NC) contact rated at 6 A, 220 V for power supply fault |
| Overload Protection | 2.3 times the maximum rated input voltage for 1.3 ms |
| Power Dissipation | 6 + (1.8 x Iout) watts, where Iout is in amperes |
| UL Listed | Yes |
Industry Applications
This power supply excels in environments where uptime is non-negotiable. For example, in continuous process manufacturing (e.g., chemical plants), the redundant design ensures that if one supply fails, the backup maintains the 5.1 VDC rail without interruption. In water treatment facilities, the alarm output (NC contact rated at 6 A, 220 V) provides immediate fault notification to the SCADA system, enabling rapid response. The wide input range (20 to 30 VDC) also suits battery-backed DC bus systems common in renewable energy installations.
Installation & Setup Guidance
When integrating this module into a Modicon Quantum rack, verify the input voltage is within the 20 to 30 VDC range. Use a dedicated DC source capable of supplying the 3.8 A maximum input current. Account for the inrush current (25 A at 24 VDC) during initial power-up; ensure upstream circuit breakers are sized appropriately to avoid nuisance tripping. The alarm output (NC contact) should be wired to a monitoring input for fault detection. Confirm the output load does not exceed 8 A in redundant mode.
Maintenance & Reliability
Periodically inspect the local signaling LEDs for status indication. Clean the module's ventilation areas to prevent dust buildup. Verify the alarm output circuit integrity during routine checks. The internal overvoltage protection and overload capability (2.3 times rated voltage for 1.3 ms) provide robust defense against transients, but regular testing of the redundant function is recommended to ensure failover readiness.
Compatibility & Integration
This module is designed specifically for the Modicon Quantum product line. It integrates seamlessly with Quantum backplanes and other series components. The alarm output provides a direct interface to PLC digital inputs for system monitoring.
Selection Guide & Purchasing Advice
For maintenance teams seeking to enhance system reliability, the 140CPS22400C is a proven choice. SpareTechPLC offers this unit with verified authenticity and fast shipping. Please verify current lifecycle status and availability with SpareTechPLC before ordering.
Troubleshooting & Common Issues
If the module fails to power up, first check the input voltage at the terminals (must be 20 to 30 VDC). If the alarm output is triggered, inspect the load for short circuits or overload conditions exceeding 8 A. Dim or absent LED indicators suggest a loss of input power or internal fault. The overload protection (2.3 times rated voltage for 1.3 ms) may activate during severe transients; reset by cycling input power.
