TAC Xenta 422A SCHNEIDER Input module

Description

TAC Xenta 422A SCHNEIDER Input module

Product Dimensions：

Product Description

The TAC Xenta 422A is a robust, LonWorks-based building automation controller designed for complex control tasks involving a larger number of inputs and outputs than smaller controllers.

• Product Family: TAC Xenta / EcoStruxure Building Operation.

• Type: Programmable Building Automation Controller / Field Controller.

• Communication Protocol: LonWorks (LonTalk) using the TP/FT-10 physical layer, facilitating reliable peer-to-peer communication across the control network.

• Programming: Programmed using specialized configuration tools (e.g., TAC Menta) that allow engineers to define custom control strategies.

• I/O Configuration: The “422A” typically denotes a specific, fixed combination of Universal Inputs ($\text{UI}$), Digital Inputs ($\text{DI}$), Analog Outputs ($\text{AO}$), and Digital Outputs ($\text{DO}$).

Product Parameters

The Xenta 422A is characterized by its high I/O count, making it suitable for controlling large, integrated equipment like central plant systems.

Product Advantages

• High I/O Density: The significant number of $\text{UI}$, $\text{DI}$, $\text{AO}$, and $\text{DO}$ points allows the 422A to control and monitor large, multi-function systems (like large AHUs or central plants) with a single controller, simplifying wiring and reducing hardware costs.

• LonWorks Reliability: Utilizes the robust LonWorks protocol for dependable and resilient decentralized control, ensuring system stability even during network fluctuations.

• Flexibility in Programming: Free programmability enables precise implementation of complex, site-specific energy optimization and control strategies.

• Proven Technology: Based on a mature and widely-installed platform, ensuring long-term reliability and readily available technical support within the Schneider ecosystem.

• Local Processing Power: The controller executes all control logic locally, offering fast response times and ensuring critical operations are maintained independently of the central server.

Precautions

• I/O Configuration: Before wiring, confirm that each Universal Input ($\text{UI}$) is correctly configured in the programming software ($\text{Menta}$) for its intended use (e.g., voltage, resistance, or digital mode).

• Power Isolation: Use a transformer dedicated to control circuits. Avoid connecting the controller to power circuits with heavy or noisy loads to ensure stable operation of the $24 \text{ V}$ supply.

• Wiring Practices: Maintain strict separation between low-voltage signal wires (I/O, network) and high-voltage power wiring to mitigate electromagnetic interference (EMI).

• LonWorks Cabling: Adhere strictly to $\text{LonWorks}$ wiring guidelines, including bus length limits, proper star-or-bus topology, and correct termination (if required) to guarantee error-free communication.

• Testing: Thoroughly test all input and output points during commissioning, verifying that the physical wiring matches the software configuration and that the control logic functions as intended.

Product Applications

The TAC Xenta 422A is typically used for critical and large-scale control applications within commercial, institutional, and industrial buildings:

• Large Air Handling Units (AHUs): Controlling complex multi-zone AHUs that require a large number of sensors (temperature, pressure, humidity) and actuators (dampers, valves, VFD speed).

• Central Plant Equipment: Managing the sequencing and modulation of chillers, boilers, heat exchangers, and associated pumping systems.

• Custom Equipment Integration: Used as the primary controller for custom-built mechanical skids or specialized equipment that requires centralized, integrated control.

• Thermal Energy Storage (TES) Systems: Implementing sophisticated control logic for charging and discharging TES tanks.

• District Energy Interface: Acting as the main interface and control point for heat or cooling exchange with a district energy network.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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