The Siemens RWD68 universal controller provides independent electronic control for HVAC and refrigeration comfort applications. It supports multiple input types (Ni 1000, Pt 1000 temperature sensors, 0‑10 V signals) and configurable output signals, including a 0‑10 V analog output and a two‑position digital output.
The manual covers installation options (DIN rail, wall‑mounted, protective enclosures), wiring diagrams, configuration of auxiliary functions (PI limiter, remote setpoint, cascade control, winter/summer mode, day/night mode), and technical data such as power consumption, operating temperature range, and safety certifications. This manual is written in Chinese.
| Power consumption | 3.0 VA |
|---|---|
| Maximum analog output current | ±1 mA |
| Input signal range | –100 to 8000 (°C, % or unitless) |
| Weight | 0.2875 kg |
| Storage temperature range | −25 °C … +70 °C |
| Operating temperature range | 0 °C … +50 °C |
| IP rating | IP20, IP30 |
Connect a switch between the D1 and M terminals; opening the switch selects day mode, closing it selects night mode.
Two universal input points accept Ni 1000 or Pt 1000 resistance temperature sensors and 0‑10 V signals.