APC VS 50, VS 100 user manual Introduction, General Information, How to Use This Manual

2 Introduction

2.1. General Information

DC Power Plants from APC have unique features that make them easy to install, maintain, and upgrade. The rectifier units are modular and truly “hot-pluggable” into the shelf assembly without any separate ac wiring. The Magnum VS 50 has 1 shelf, holding up to five rectifiers for a rated current of 50 A. The Magnum VS 100 has 2 shelves, holding up to ten rectifiers for a rated current of 100 A. All system settings are made from a standard PC using a serial cable or a 10/100 Base T connection. The controller provides monitoring and control functions for each component of the system and stores alarm listings for system diagnosis and maintenance. For ease of operation, a display with LCD readout and 5-button keypad can be inserted in rectifier slot 5

Figure 2.1-1 Magnum VS 50 –48 Vdc Power Plant

The APC Magnum VS is a modular stand-alone -48 Vdc power plant. It is configurable in such a manner that it will support most typical applications within the specified current ranges (10-100

A)without special application engineering or assistance. DC output distribution is included for circuit breakers or GMT style fuses or in the 100-A versions, a combination of both. Available circuit breakers are 30 A or 60 A. GMT fuses can be 1/4 to15 A. A low voltage disconnect (LVD) is provided to disconnect the battery after deep discharge. A 50-ampere power system is shown in Figure 2.1-1. A block diagram of a typical 100-ampere power system with fuses and breakers is shown in Figure 2.2-1.

2.2. How to Use This Manual

Each section of this manual can be read in any order and provides a complete explanation of the subject described by the title. However, the sequence of the sections is designed to provide a typical step-by-step process for successful use of the equipment.

Magnum VS –48 Vdc User’s Manual Page 2