Vertiv Liebert APM 300, Руководство пользователя

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10 Chapter 1 Overview
APM 300 Integrated UPS Single Module And Parallel System User Manual
Trigger: manually through the command of Battery Maintenance Test on LCD or automatically.
Interval: 30 days
~
360 days (default setting: 60 days).
1.6.3 Battery Temperature Compensation
The UPS system has battery charge temperature compensation function. When the ambient temperature is
increased, the DC bus voltage (which charges the battery) will be reduced correspondingly to provide optimal
charging voltage for the battery, thus prolonging the battery service life time.
This function must be used together with the Emerson battery temperature detection device (a standard
option).
1.7 Battery Protection (Set By Commissioning Engineer)
Battery low pre-warning
The battery low pre-warning occurs before the EOD. After this pre-warning, the battery should have the
capacity for three remaining minutes discharging with full load. The time can be configured from 3min to
60min.
EOD protection
When the battery voltage drops to the EOD voltage, the battery converter shuts down. The EOD voltage is
adjustable from 1.6V/cell to 1.75V/cell (VRLA) or 0.9V/cell to 1.1V/cell (NiCd).
BCB open alarm
This warning occurs when the BCB opens. The battery is connected to the UPS through the BCB, which is
manually closed and electronically tripped by the UPS control circuits.