RWR462.10 SIEMENS

RWR462.10 SIEMENS Basis unit

Product  Description：

The RWR462.10 is an multi-functional controller that operates as a standalone unit or within a larger building automation framework. It features a built-in user interface consisting of a backlit liquid crystal display and a turn-and-press navigation knob, allowing for intuitive onsite operation without the need for a computer. The controller is designed for mounting on a standard DIN rail and is built with the high reliability expected of Siemens building technologies. It utilizes pre-programmed application sets that can be activated by the user, significantly reducing the time required for commissioning and balancing the system.

Product Parameters

• Supply Voltage: $24 \text{ VAC}$ at $50/60 \text{ Hz}$.

• Power Consumption: Approximately $7 \text{ VA}$ (excluding external loads).

• Analog Inputs: 2 universal inputs compatible with LG-Ni1000, Pt1000 sensors, or $0-10 \text{ V}$ DC signals.

• Digital Inputs: 1 potential-free digital input for status monitoring or remote switching.

• Analog Outputs: 2 modulating outputs providing $0-10 \text{ V}$ DC for controlling actuators or frequency converters.

• Relay Outputs: 2 potential-free relay contacts for switching fans, pumps, or heaters (Rated $4 \text{ A}$ at $250 \text{ VAC}$ res.).

• Control Loops: Supports up to 2 independent control loops (P, PI, or PID control logic).

• Protection Class: IP20 (according to EN 60529), suitable for installation in control panels.

• Ambient Operating Temperature: $0\text{°C}$ to $50\text{°C}$ ($32\text{°F}$ to $122\text{°F}$).

Product Advantages

A primary advantage of the RWR462.10 is its Pre-programmed Application Library, which allows users to select a standard configuration (like supply air temperature control) and simply adjust the setpoints, eliminating the need for complex custom programming. The Universal Input Design provides high flexibility, as the same controller can interface with various sensor types or voltage signals without hardware changes.

The Backlit Display and clear text icons make it exceptionally user-friendly for maintenance personnel to check system status at a glance. Additionally, the Compact Modular Design allows for easy integration into existing control cabinets where space may be limited. Its ability to provide precise PID Control ensures that the HVAC system operates at peak energy efficiency, reducing operational costs by preventing hunting and overshooting of temperature targets.

Important Considerations and Precautions

When installing the RWR462.10, it is crucial to verify that the Supply Voltage is exactly $24 \text{ VAC}$; connecting it to $230 \text{ VAC}$ mains will cause immediate and irreparable damage to the device. Wiring Separation is also a key factor; sensor cables and communication lines should be routed away from high-power cables (like those for motors or heaters) to prevent electromagnetic interference from distorting sensor readings.

During commissioning, ensure that the Sensor Type Configuration in the software matches the physical sensor installed (e.g., Ni1000 vs. Pt1000), as a mismatch will result in significant temperature measurement errors. Furthermore, the Maximum Relay Load must not be exceeded; if you are switching a high-power motor, an external power contactor should be used. Lastly, the unit is intended for indoor use only and should be installed in a Dry, Dust-free Environment to prevent moisture ingress or short circuits on the PCB.

Product Applications

The Siemens RWR462.10 is found in a variety of commercial and light industrial HVAC applications.

• Air Handling Units (AHU): Controlling supply air temperature and humidity by modulating heating/cooling valves and steam humidifiers.

• Chilled Water Systems: Managing the secondary pump speed and mixing valves based on the cooling demand of the building.

• Heating Circuits: Regulating the flow temperature in radiator or underfloor heating systems based on outdoor air temperature compensation.

• Heat Exchangers: Controlling the primary side valve to maintain a precise secondary side outlet temperature.

• Ventilation Control: Managing fans and dampers in small to medium-sized commercial buildings to ensure proper air quality and pressure.

The structure and details of the product：

Our services：

Shipping Port:  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

Warranty: one year

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