Lucent Technologies -48V CPS4000/CPS4000 PLUS Cabinet Power System
7 - 18 Alarms, Controls, and Displays Issue 13 December 2000
Boost Mode
Overview This function recharges the batteries after a BD (Battery on Discharge)
event has occurred.
The ES648A, ES648B, ES648BZ, and ES648C control units along with
the ES660C rectifiers provide the Boost Mode function.
The Boost Mode is independent of the PMJ alarm being generated with
a BD event. After the plant has experienced a BD event, the control unit
will drive the rectifiers to approximately 58.1 volts. The temperature
compensation feature will be disabled; however, the control unit will
continue to monitor the battery temperature and issue a battery
temperature alarm and/or decrease the plant voltage to approximately 48
volts if the highest battery temperature attained is greater than 75°C.
Note: The Boost Mode function should not be enabled if there are any
ES660 rectifiers installed in the system.
To enable the Boost Mode function, operate the SW2 position on the
control unit to the closed position. The boost mode will last a minimum
of 5 minutes to a maximum of 8 hours, or until the total battery current
is less than 5 amperes. To manually exit the boost mode, perform an
LED Test.
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