Introduction
1-4 Eaton 9E UPS (40–60 kVA, 208/220V) Installation and Operation Manual P-164000058—Rev 4 www.eaton.com/powerquality
1.2.9 Monitoring and Communication
Mini-Slot Cards – Optional Mini-Slot
®
cards support several protocols, such as SNMP, HTTP, Modbus
®
and
RS232.
See Chapter 7, “Communication,“ for additional information on monitoring and communication features.
1.2.10 Dual Feed
Optional dual-feed input terminals are available to provide a separate bypass feed to the UPS.
1.2.11 Maintenance Bypass
The optional internal Maintenance Bypass consists of a Bypass circuit breaker used to control the AC input to
the UPS bypass, an output breaker controlling the inverter output, and a Maintenance Bypass breaker used to
partially isolate the UPS so that a limited number of components can be serviced without interrupting power
to critical systems.
1.3 Battery System
The battery system is internal to the UPS cabinet or can be an external cabinet. Internal and external batteries
can not be used at the same time. All UPSs in a parallel system must have the same battery configuration. The
battery system provides emergency short-term backup power to safeguard operation during brownouts,
blackouts, and other power interruptions. The battery system is equipped with lead-acid batteries.
1.4 Basic System Configurations
The following basic UPS system configurations are possible:
l
Single UPS with internal batteries
l
Single UPS with one or two external battery cabinets
l
Single UPS with internal batteries and accessory cabinets
l
Single UPS with one or two external battery cabinets and accessory cabinets
The UPS system configuration can be enhanced by adding optional accessories such as a Remote Emergency
Power-off (REPO) control or Mini-Slot communication cards.
1.5 Using This Manual
This manual describes how to install and operate the Eaton 9E 40–60 kVA. Read and understand the procedures
described in this manual to ensure trouble-free installation and operation. In particular, be thoroughly familiar
with the REPO procedure (see paragraph 6.3.13).
The information in this manual is divided into sections and chapters. The system, options, and accessories
being installed dictate which parts of this manual should be read. At a minimum, Chapters 1 through 4
and Chapter 6 should be examined.
Read through each procedure before beginning the procedure. Perform only those procedures that apply to the
UPS system being installed or operated.
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