SCHNEIDER ELECTRIC 140CPS12420 Modicon Quantum Power Module
The SCHNEIDER ELECTRIC 140CPS12420, also cataloged as the 140CPS12420 Power Supply Module, operates as a dedicated hardware component for high-capacity backplane power distribution within Modicon Quantum platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 140CPS12420 |
| Brand | Schneider Electric |
| Origin | Manufacturer specified |
| Weight | 0.65 kg |
| Dimensions | Standard 1-slot Quantum |
| Operating Temp | Industrial standard compliant |
| Power Consumption | 30 W (Dissipation) |
| Output Voltage | 5.1 V DC |
| Output Current | 11 A |
| Input Voltage | 115/230 VAC (Selectable) |
Profinet / EtherNet/IP Deterministic Networks and Performance
The 140CPS12420 provides the stable DC potential necessary for maintaining backplane bus communication velocity across complex Quantum architectures. In redundant topologies, the module facilitates seamless load sharing, ensuring that timing-critical data exchanges—such as those required for Profinet or EtherNet/IP deterministic networks—remain uninterrupted during a primary power fault. The module architecture supports I/O density scaling by providing a 11 A capacity on the 5.1 VDC rail, which is required for high-density I/O configurations and intensive communication processing. Firmware flash compatibility within the system allows for integrated diagnostic registers to transmit bus health data, including power supply voltage status and fault relay state, back to the central processor.
Frequently Asked Questions
Q: Can the 140CPS12420 be configured for redundancy without software changes?
A: Yes. Redundancy is achieved through the physical installation of a secondary module on a redundant-capable backplane. The system automatically manages failover via the hardware relay contacts; no specific software or firmware configuration is required to initialize the standby state.
Q: What is the purpose of the integrated fault relay?
A: The normally closed (NC) dry contact relay acts as a diagnostic feedback mechanism. It remains closed during normal operation (Power OK) and opens upon the detection of a DC output failure, allowing the PLC to log the fault or trigger an external alarm circuit.
Field Installation Guidelines
- Mounting: Insert the module into the designated power supply slot of the Quantum backplane. Verify that the rear connector is fully seated and the module locking tabs are engaged to ensure a stable electrical connection.
- Input Selection: Before applying AC power, confirm the position of the manual slide switch for the input voltage (115 VAC or 230 VAC). Incorrect selection may trigger internal protection or cause improper voltage regulation.
- Grounding: Connect the protective earth (PE) terminal to a low-impedance ground bus. Ensure the external 2 A slow-blow fuse is installed in the AC branch circuit to provide adequate short-circuit protection and satisfy industrial safety standards.
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Operations Director, GermanyRelated Products
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