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Introduction
1.1
UPS Standard Features
The UPS has many standard features that provide cost-effective and consistently reliable power protection.
The descriptions in this section provide a brief overview of the UPS standard features.
1.1.1 Installation Features
Power wiring can be routed to the bottom or rear of the cabinet with connections made to easily accessible
terminals. Some models (93E-15UI / 93E-20I / 93E-30I / 93E-40I) provide rear-only cable access. Details in 4.4 section
of user manual.
1.1.2 Control Panel
The control panel, located on the front of the UPS, contains a liquid crystal display (LCD) and pushbutton
switches to control the operation of the UPS and to display the status of the UPS system. See Chapter 6,
"UPS Operating Instructions, " for additional information.
1.1.3 Customer Interface
•
Building Alarm Monitoring – Up to three inputs in the UPS are available to connect the facility's alarm
system contacts. Some system configurations may limit the number of inputs available. The UPS uses
these inputs to monitor the building alarms in addition to the UPS status. See Chapter 7 ,
"Communication, " for additional information.
•
Mini-Slot Communication Bays – Two communication bays are standard equipment. One to two optional
Mini-Slot connectivity cards can be installed in the UPS module at any time. Mini-Slot cards are quickly
installed at the front (behind door) of the UPS and are hot-pluggable. See Chapter 7 , "Communication, " for
additional information.
1.1.4 High-Efficiency Mode
The 93E Series UPS offers a High-Efficiency (HE) normal mode with double-conversion on demand that allows
the UPS to operate in standby bypass mode. This mode allows the 93E UPS to achieve 98% efficiency while
still protecting the load. See Chapter 6, "UPS Operating Instructions, " for additional information. On setting the
UPS to work in High Efficiency mode.
1.1.5 Advanced Battery Management
A three-stage charging system increases battery service life by optimising recharge time, and protects
batteries from damage due to high current charging and inverter ripple currents. Charging at high currents can
overheat and damage batteries.
1.1.6 Maintenance Bypass
The internal Maintenance Bypass for 15-80 kVA models consists of input, output , neutral and bypass input
(Dual feeds) switches used to control the AC input to the UPS the inverter output, and a Maintenance Bypass
switch used to partially isolate the UPS so that a limited number of components can be serviced without
interrupting power to critical systems.
1-2
Eaton 93E UPS (15-80 kVA, 380/400/415V) Installation and Operation Manual
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