TXS1.12F10 SIEMENS Power Supply Module

Description

TXS1.12F10 SIEMENS Power Supply Module

Product Dimensions：

Product Description (Detailed Explanation)

The TXS1.12F10 serves as a vital infrastructure component within a Siemens Desigo system. Its primary role is to bridge the communication and power between the I/O bus and the connected modules. It converts an AC/DC 24V input into a stabilized DC supply for the module electronics (bus power) and also distributes the supply voltage to the field devices connected to downstream I/O modules.

Equipped with a built-in fuse, it ensures that overloads do not damage the entire I/O row. It also provides isolation and filtering for the I/O bus signals, ensuring stable data transmission across the automation station.

Product Parameters (Technical Specifications)

Product Advantages (Key Benefits)

• Integrated Bus Power: Simplifies cabinet design by providing the necessary 1.2A current for the logic of multiple I/O modules through the backplane bus.

• High Field Current Capacity: Capable of distributing up to 10A for field devices (valves, sensors, actuators), reducing the need for additional terminal blocks.

• Replaceable Protection: Features a high-quality 10A micro-fuse that protects the I/O row from wiring errors or field device failures.

• Galvanic Isolation: Provides a layer of protection between the main supply and the sensitive internal I/O bus.

• Compact Modular Design: Matches the footprint of the TX-I/O module series, allowing for seamless integration and professional cabinet aesthetics.

Precautions (Important Notes)

• Max Load Calculation: Before installation, you must sum up the power consumption of all downstream modules to ensure the total bus current does not exceed 1.2A. If it does, an additional TXS1.12F10 must be inserted.

• Fuse Replacement: Always disconnect the 24V power supply before replacing the internal 10A fuse to avoid electrical arcing or damage to the electronics.

• Bus Termination: Ensure the bus connectors are properly seated. A loose connection at the power supply module can cause intermittent communication failures for the entire I/O row.

• Polarity: While it accepts AC/DC 24V, proper grounding and polarity must be observed in DC applications to prevent ground loops.

Product Applications (Typical Use Cases)

• HVAC Control Centers: Providing power to I/O modules controlling Air Handling Units (AHU), boilers, and chillers.

• Building Automation Stations: Acting as the power entry point for a row of Desigo TX-I/O modules in a floor controller cabinet.

• Distributed I/O Blocks: Powering remote I/O clusters that communicate with a PXC or PXM primary controller via a bus extension.

• Complex Industrial HVAC: Ensuring stable power for high-density I/O configurations where many sensors and relay modules are used in a single row.

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