TAC Xenta 400 0-073-0902-0 SCHNEIDER Central control module

Description

TAC Xenta 400 0-073-0902-0 SCHNEIDER Central control module

Product Dimensions：

Product Description

The TAC Xenta 400 is a high-performance, freely programmable building automation controller. It is designed to manage complex control tasks in medium to large buildings, primarily focusing on HVAC applications but also suitable for lighting and access control integration.

• Product Family: TAC Xenta / EcoStruxure Building Operation.

• Type: Programmable Logic Controller (PLC) / Building Automation Controller.

• Communication Protocol: LonWorks (LonTalk) is the core communication technology, enabling peer-to-peer communication between devices on the control network.

• Programming: Configured and programmed using specialized tools (e.g., TAC Menta) to create custom control strategies (e.g., PID loops, sequencing, scheduling).

• I/O: Features a combination of universal inputs (UI), digital inputs (DI), analog outputs (AO), and digital outputs (DO) to interface with field devices (sensors, actuators, valves).

Product Parameters

The specific $\text{0-073-0902-0}$ model dictates the exact I/O configuration, but here are the typical ranges for the Xenta 400 series:

Product Advantages

• High Programmability: The Xenta 400 allows for complex, customized control logic tailored to specific building requirements, optimizing energy efficiency and occupant comfort.

• LonWorks Networking: Utilizes the robust LonWorks protocol for true peer-to-peer communication, improving system reliability and scalability.

• Decentralized Control: As a field controller, it executes control locally, reducing reliance on the central server and maintaining critical function even if the network is down.

• Reliability and Proven Track Record: Part of a mature product line widely deployed in commercial buildings, known for stable, long-term operation.

• Integration Capability: Can easily integrate with other LonWorks devices and be supervised by Schneider’s EcoStruxure Building Operation (formerly $\text{TAC Vista}$) software platform.

Precautions

• Network Termination: Proper $\text{LonWorks}$ network termination is critical for reliable communication. Follow the manufacturer’s guidelines for bus topology and termination resistors.

• Power Quality: The $24 \text{ V AC/DC}$ power supply must be clean and stable. Use a dedicated, appropriately sized transformer to avoid brownouts or surges that could affect operation.

• Wiring Separation: Observe best practices for control wiring: separate low-voltage signal wiring (I/O) from high-voltage power wiring to minimize electrical noise (EMI/RFI).

• Grounding and Shielding: Ensure the controller and shielded communication cables are properly grounded to prevent ground loops and communication errors.

• Configuration Backup: Always back up the controller’s application program and configuration files after commissioning and before performing any major changes.

Product Applications

The TAC Xenta 400 is a core component in many automated building systems:

• Central Plant Control: Managing complex central heating and cooling equipment (chillers, boilers, cooling towers) and their optimization strategies.

• Air Handling Unit (AHU) Control: Implementing advanced control sequences for large AHUs, including free cooling, enthalpy control, variable air volume (VAV) reset, and fan speed control.

• Variable Air Volume (VAV) System Management: Supervising and coordinating large networks of VAV terminal units.

• Lighting and Energy Management: Used for scheduling, occupancy-based control, and demand-response strategies to reduce energy consumption.

• Integration Applications: Serving as a gateway or interface for integrating third-party systems or non-LonWorks protocols into the main BMS.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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