Eaton 93E XL, Installation And Operation Manual, Page: 12 / 96

system. This load sharing system provides more capacity than a single UPS, and can provide backup
.
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 rear of the cabinet with connections made to accessible terminals.
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 – UPS equipped with two communication bays as standard. One of the two
communication bays slotted with a RS232 card as factory default. Mini-Slot cards can be e a s i l y 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 XL 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 XL 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 optimizing 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 93 XL UPS consists of input, output 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.
1.1.7 Dual input
93E XL series with dual feed input, with separate rectifier input and bypass input terminals.
1.2 Options and Accessories
Contact an Eaton sales representative for information about the following options.
1.2.1 External Battery Cabinet
Battery backup protection is provide by equipping the UPS system with up to four External Battery Cabinets
(EBCs) containing sealed lead-acid, maintenance-free batteries. The EBCs are housed in single, free-standing
cabinets designed for line-up-and-match installation, but may be installed separate from the UPS cabinet.
1.2.2 Parallel System
A parallel UPS system with up to four UPSs can be installed to provide a parallel capacity and/or redundant
2 Eaton 93E XL UPS (10-40kVA, 380/400/415V) Installation and Operation