Operating instructions for Siemens AG Österreich's SITOP DC-USV-Modul 15, describing the features and characteristics of the product.
The SITOP DC‑USV‑Module 15 is a chassis‑mountable UPS module for DIN‑rail installation. It provides backup power for 24 V DC loads up to 15 A by switching to a connected battery module when the supply voltage falls below a configurable cut‑in threshold. The manual describes safe handling, installation, wiring, and configuration of the module and its battery modules.
Key functions include adjustable cut‑in threshold, end‑of‑charge voltage, charging current, and buffering time via DIP switches, as well as status indication through LEDs and optional serial or USB interfaces for remote monitoring. This manual is written in German.
| Input nominal voltage | 24 V DC |
|---|---|
| Maximum input current (battery charged) | 16.0 A DC |
| Maximum input current (battery discharged) | 15.1 A DC |
| Maximum battery current in buffer operation | 15.1 A DC |
| Standby current draw from battery | ≈ 0.30 mA |
Only properly qualified personnel may work on or near the equipment.