Eaton 93PM UPS 480V Three-Wire – 100 kW Frame Installation and Operation Manual 164000227—Rev 07
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The control panel, located on the front of the UPS, contains a color liquid crystal touch screen display (LCD) and
a horizontal row of LED indicators to control the operation of the UPS and to display the status of the UPS
system. See
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•
Building Alarm Monitoring
– Up to five 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
•
Alarm Contact
– One alarm contact is provided for connection to equipment at the facility, such as a light,
an audible alarm, or a computer terminal. The equipment connected to this contact alerts you to a UPS
alarm. See
•
Minislot Communication Bays
– Four communication bays are standard equipment. One to four optional
Minislot
®
connectivity cards can be installed in the UPS at any time. Minislot cards are quickly installed at
the front of the UPS and are hot-pluggable. See
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The 93PM Series UPS offers an Energy Saver System (ESS) mode that maximizes efficiency by eliminating
unnecessary power conversion when the commercial power source is within acceptable voltage and frequency
limits. In this mode, the UPS is actively monitoring the critical bus and instantly and seamlessly transitions to
double-conversion mode (inverter online) if a commercial electrical power brownout, blackout, overvoltage,
undervoltage, or out-of-tolerance frequency condition occurs. See
for
additional information.
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To deliver greater reliability, the Eaton 93PM UPS can be configured for internal redundancy. When configured,
the UPS automatically becomes redundant if the load is at or below the capacity of the UPMs minus the
capacity of one UPM. Under normal conditions the UPMs in the UPS share the load equally. If one or more
UPMs becomes unavailable and the load is at or below the capacity of remaining UPMs, the remaining UPMs
supply the load instead of transferring to bypass.
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93PM models are complementary listed for “UL 924 Auxiliary Lighting and Power Equipment”, which allows
alternative battery runtimes to be used.
WARNING
Emergency Power Off (EPO) and Remote Emergency Power Off (REPO) functionality is disabled for UPS
systems configured for UL 924 auxiliary lighting. To remove power from the system, a LOAD OFF command
(see paragraph
Using the UPS LOAD OFF Command
or
) must be
given using the front panel controls and all breakers opened.
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Advanced Battery Management (ABM) technology uses sophisticated sensing circuitry and a three-stage
charger. The charger is a high-frequency, IGBT-based power conversion stage that extends the useful service
life of UPS batteries by isolating the battery from the electrical environment, except for periodic charging or
reserve mode operation. ABM also protects batteries from damage due to high current charging and inverter
ripple currents. Charging at high currents can overheat and damage batteries.
ABM extends battery life by keeping the batteries charged and performing periodic battery testing. The battery
test checks the batteries by transferring to battery mode. During the test the battery voltage is constantly
monitored to determine Battery Health. ABM is intended for VRLA style batteries.
Summary of Contents for 93PM Series
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