Tyco Electronics Galaxy SC Controller J85501F-1
7 - 7 Feature Descriptions Issue 13 February 2001
• 100 minutes elapses and 20 percent capacity has not been removed.
• Battery voltage declines to the highest of the following computed
values:
– 2A. (1.75 x No. of cells) + 1.2 [48V] or + .6 [24V]
– 2B. Highest LVD disconnect threshold + 1.2 [48V] or + .6
[24V]
– 2C. Converter disconnect threshold + 1.2 [48V] or + .6 [24V]
– 2D. (Configured end cell voltage x No. of cells) + 1.2 [48V] or
+ .6 [24V]
• A voltage sense fuse operates.
• A rectifier fail alarm occurs.
• Any serial communication failure occurs.
• Any power major alarm occurs.
If the test is aborted due to an alarm, the Reserve Time message is
displayed as “Alarm Abort” and a user clearable minor alarm is
generated. If the test is aborted due to any of the other conditions shown
above, the Reserve Time message is displayed as “Check Battery” and
a user clearable minor alarm is generated.
At the completion of the test, BD and VLV alarm thresholds continue to
be inhibited for 3 additional minutes to allow the batteries to recharge.
A successful test displays the calculated value in the Reserve Time field;
default menu in the intelligent controller or menu path MENU →
MAINT OPER.. in the basic controller. Reserve time in EasyView is
displayed at menu path: Status → DC Plant.
The Battery Test software switch must be enabled and the following
battery parameter must be configured.
BAT CLASS Either Flooded or Sealed is selected.
The intelligent controller provides an enhanced battery discharge test
that makes even greater accuracy possible. Enabling the
“ENHANCED” software switch utilizes the Universal Reserve Time
Prediction algorithm which takes into account the particular discharge
characteristics of the battery subsystem. The URPT feature requires that
battery temperature be monitored and several related battery parameters
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