2 Eaton 9355 UPS (10/15 kVA) User’s Guide 164201594—Rev H0
• ABM
®
technology that uses advanced battery management to increase battery service life, optimize
recharge time, and provide a warning before the end of useful battery life.
• Up to three hours of extended runtime with added EBMs.
• Advanced power management with the Software Suite CD for graceful shutdowns and power monitoring.
• Emergency shutdown control through the remote emergency power-off (REPO) port.
• Start-on-battery capability for powering up the UPS even if utility power is not available.
• Standard communication options with a DB-9 serial port, relay output contacts, and programmable signal
inputs.
• Optional X-Slot
®
cards with enhanced communication capabilities for increased power protection and
control.
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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.
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The control panel, located on the front of the UPS, has a four-button graphical LCD with backlight. It provides
useful information about the UPS itself, load status, events, measurements, and settings.
See Chapter 7 UPS Operating Instructions for additional information.
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• Building Alarm Monitoring – Up to four 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.
• X-Slot Communication Bays – Two communication bays are standard equipment. Up to two
communication cards can be installed in the UPS at any time.
For additional information on these topics, see Chapter 6 Communication.
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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.
An ABM charging cycle starts with the charger driving the battery voltage at maximum current limit, to a
battery charge level of 2.30volts/cell. The time it takes for the voltage to reach the battery charge level is saved
as the battery charge time. If the battery charge time exceeds 24 hours, an alarm sounds.
When the battery reaches the float level, the battery is charged at the float level for 48 hours. Due to charger
capability, some battery cabinet configurations extend float level to 72 hours. Twenty-four hours into the float
period, a series of battery tests are performed to check the battery health. The float level charge continues
after a successful test.
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General
Weight and Dimensions
