4 Eaton 93E UPS (20–30 kVA, 208/220V) Installation and Operation Manual 164000301—Rev 04
increased battery run time is required in the future, an extended run battery upgrade kit is available to increase
the internal battery system to six strings.
The Eaton 93E–20 is also upgradable to full EBC capability with the addition of a 93E–20 to 93E–30/20 field
upgrade kit converting the Eaton 93E–20 to a Eaton 93E–30/20 or to an Eaton 93E–30/30 with a 93E–20 to
93E30/30 field upgrade kit.
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The Eaton 93E–30/20 is firmware upgradable by an authorized Eaton Customer Service Engineer to an Eaton
93E–30/30.
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NOTE 1 All UPSs in a parallel system must have the same battery configuration.
NOTE 2 The SIAC-B cannot be used in a parallel system.
A parallel UPS system with up to four UPSs can be installed to provide a parallel capacity and/or redundant
system. This load sharing system provides more capacity than a single UPS, and can provide backup,
depending on the load and configuration. In addition, when one UPS is taken out of service for maintenance or
is not operating properly, a redundant UPS continues to supply uninterrupted power to the critical load. A
Controller Area Network (CAN) provides connectivity for system metering and operational mode control. The
parallel system consists of two to four UPSs each with a parallel CAN, and either a IAC-T or IAC-TB to act as a
tie point and to control the output.
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Mini-Slot Cards – Optional Mini-Slot
®
cards support several protocols, such as SNMP, HTTP, Modbus
®
and
RS232.
See Chapter 8 Communication, for additional information on monitoring and communication features.
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Optional dual-feed input terminals are available to provide a separate bypass feed to the UPS.
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The following basic UPS system configurations are possible:
• Single UPS with reduced string internal batteries
• Single UPS with internal batteries and EBC capability
• Single UPS with internal batteries, EBC capability, and one or two external battery cabinets
• Single UPS with reduced string internal batteries and accessory cabinets
• Single UPS with internal batteries, EBC capability, and accessory cabinets
• Single UPS with internal batteries, EBC capability and 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.
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This manual describes how to install and operate the Eaton 93E 20–30 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 detailed in Chapter 7 UPS Operating Instructions.
Introduction
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