The140CPS21400is a high-capacity, summable power supply module engineered for the Modicon Quantum automation platform. It converts a24 VDCinput into a regulated5.1 VDCoutput to power the backplane and associated I/O modules. As a "summable" unit, it is specifically designed for high-availability configurations, allowing multiple power modules to be installed in the same rack to increase the total available current or provide power redundancy for mission-critical control operations.
Technical Specifications
Brand:Schneider Electric
Range:Modicon Quantum
Model Designation:140CPS21400
Power Supply Type:Summable (Parallel capable)
Input Voltage:24 VDC (Range: 20...30 VDC)
Input Current:3800 mA
Inrush Current:14 A at 20 V / 25 A at 24 V
Output Voltage:5.1 VDC
Output Current:8 A (Summable)
Power Dissipation:$6 + (1.8 \times I_{out})$(where$I_{out}$is in Amps)
Associated Fuse:5 A, slow-blow
Alarm Output:1 NC (Normally Closed) contact, 6 A at 220 V
Local Signaling:1 Green LED (Power OK)
Module Format:Standard Quantum slot
Net Weight:0.65 kg (1.43 lb)
Safety Standards:UL 508, CSA C22.2 No 142
Certifications:cUL, FM Class 1 Division 2, CE
Engineering Insights and Redundancy Logic
The140CPS21400is a foundational component for large-scale Modicon Quantum architectures. The "summable" feature allows this module to operate in parallel with other power supplies on a single backplane. This architecture is vital for systems where the total current draw of the I/O modules exceeds 8 A, or where "N+1" redundancy is required to ensure the system remains live if one power module fails. Internally, the module is equipped with overvoltage and overload protection, shielding the expensive CPU and communication modules from electrical faults. The integrated alarm contact provides a physical dry-contact trigger for external sirens or PLC inputs to notify operators of a power supply failure immediately.
