Schneider 140CPS21400 power supply module

Description

Schneider 140CPS21400 power supply module

The Schneider Electric 140CPS21400 is a high-performance AC power supply module belonging to the Modicon Quantum automation platform. It is designed to provide stabilized DC power to the modules plugged into a Quantum backplane (rack).

Product Detailed Description

The 140CPS21400 serves as the “heart” of a Modicon Quantum subrack. It converts an AC input voltage into the internal bus voltages required by the CPU, I/O modules, and communication interface cards. This specific model is a Summable power supply, meaning multiple units can be used in the same rack to increase available current or provide redundancy.

Technical Parameters

Product Advantages

• Summable Architecture: Allows for “Power Summing,” where two or three power supplies can be installed in a single rack to support high-density I/O configurations.
• Redundancy Support: Can be used in a redundant power supply configuration (1+1) to ensure the PLC continues to run even if one power supply unit fails.
• Built-in Diagnostics: Features front-panel LED indicators (“Power OK”) to provide immediate visual status of the input and output health.
• Rugged Design: Specifically engineered for industrial environments with high resistance to electromagnetic interference (EMI) and vibration.

Important Considerations & Precautions

• Input Voltage Selection: Ensure the slide switch (if applicable) or wiring matches your local AC mains voltage (115V vs 230V) before applying power to avoid permanent damage.
• Slot Placement: While it can occupy any slot, it is traditionally placed in the leftmost slots of the Quantum rack to optimize power distribution across the backplane.
• Heat Dissipation: Ensure adequate ventilation in the control cabinet. Quantum racks generate heat, and the power supply is often the warmest component.
• Grounding: The rack must be properly grounded to the cabinet sub-panel to ensure the power supply’s internal filters function correctly.

Product Applications

The 140CPS21400 is found in large-scale industrial control systems including:

• Water & Wastewater: Powering the CPUs and I/O for large-scale pump station control and filtration plants.
• Power Generation: Used in turbine control systems and Balance of Plant (BoP) automation.
• Mining & Metals: Providing reliable power for heavy machinery control in harsh, dusty environments.
• Oil & Gas: Integrated into Emergency Shutdown (ESD) or Fire & Gas systems where high availability is required.

Shipping Port: Xiamen, China

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