Powerware 9315 User Manual download pdf (Page 7)

Po werware 9315 P arallel Redundant System I & O

164202013 Rev. D 041599

Introduction

The parallel redundant system allows two UPS modules to operate in parallel and

as backup for each other. When one UPS module is taken out of service for

maintenance or is not operating properly, the redundant UPS module continues to

supply uninterrupted power to the critical load. The parallel redundant system

refers to the parallel cabinet in conjunction with the UPS modules. The parallel

redundant system consists of one parallel cabinet, two identical UPS cabinets, and

up to four battery cabinets per UPS. Each UPS module may have its own battery

cabinet(s), or may share the same battery cabinet(s) with the other UPS module.

NOTE: The installation procedures of this manual only refer to the parallel cabinet

and its connection to the UPS cabinets for parallel redundant operation. The

operation section of this manual refers to the operation for the parallel

cabinet and the UPS system when in parallel. F or full installation and

operation of the UPS system and battery installation, refer to the

PowerwareÒ 9315 Installation, PowerwareÒ 9315 Operation,andthe

PowerwareÒ Series 685 and 1085 Auxiliary Battery Cabinets

Installation manuals provided with the UPS system and battery cabinet

accessory.

The parallel cabinet is a free-standing cabinet. Figure 1 shows a typical parallel

cabinet.

Figure 1. Typical Parallel Cabinet

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Powerware 9315 User Manual Page 7