This document introduces the RWD62 universal controller from Siemens Building Technologies, which is suitable for comfort control in HVAC and refrigeration systems. It features independent electronic control, programmable input and output ranges and directions, and multiple input and output interfaces.
This manual describes the Siemens RWD62 independent electronic controller used for comfort control in HVAC and refrigeration systems. It covers the main and auxiliary functions, input and output configurations, and the various application modes such as PI control, remote set‑point, and winter/summer switching.
Installation, mechanical design, electrical wiring, and safety requirements are detailed, along with technical data like power consumption, operating temperature range, and dimensions. The document also explains how to program the controller via on‑panel keys or a Windows‑based software tool. This manual is written in Chinese.
| Power supply | AC 24 V ±20 % (EN 60730) |
|---|---|
| Power consumption | 2.5 VA |
| Analog output signal | DC 0–10 V (±1 mA) |
| Input signal types | Ni 1000, Pt 1000 temperature sensors or 0–10 V |
| Digital input function | Day/night switch (D1) |
| Weight (unpacked) | 0.277 kg |
It can be mounted on a DIN rail, wall‑mounted inside a protective enclosure (ARG62.21/ARG62.22), or installed from the front using standard screws.