Installation and operation guide for the Siemens V2.23UE7 smart line protection monitoring device.
The V2.23UE7 series is a smart low‑voltage line protection and monitoring device for systems up to 690 V and 400 A. It integrates protection, measurement, control, and Modbus‑RTU communication in a compact, easy‑to‑install unit.
The manual provides product features, model options, technical specifications, wiring and installation instructions, operation procedures, communication setup, typical application schematics, and ordering information. This manual is written in Chinese.
| Operating temperature | -20 °C to +60 °C |
|---|---|
| Storage temperature | -40 °C to +80 °C |
| Relative humidity | ≤ 95 % (no condensation) |
| Protection rating | IP20 |
| Rated control voltage | 110‑240 V AC/DC |
| Digital inputs | 5 inputs, internally powered by 24 V DC |
| Relay outputs | 4 single‑stable relay outputs |
| Analog output | 1 channel, 4‑20 mA |
| Insulation voltage | 690 V |
| Working voltage | 380 V / 690 V |
The device operates from –20 °C to +60 °C.
It provides five digital inputs, powered internally by 24 V DC.
The device uses Modbus‑RTU over a standard RS‑485 interface.