Lucent Technologies Lineage
®
2000 Battery Management System ED-83241-30
4 - 2 Setup
Issue 5 March 1997
Position 4 enables or disables the recharge current limit feature.
SW700
This switch enables or disables the Battery Management System
control capability. The system continues to provide ambient
temperature, maximum battery string temperature and each
battery string current to the remote monitoring equipment in
either state.
Default DIP
Switch Settings
The DIP switches are preset at the factory for a 24-cell battery
plant equipped with Lucent Technologies VR Series batteries
installed in a controlled environment as shown in Table 4-A.
When the system is enabled, these settings provide temperature
control of the float voltage beginning at 77°F (25°C)(T1a). The
Minor Temperature Alarm will be issued at 95°F
(35°C)(MNTa). The float voltage will stop decreasing at 122°F
(50°C)(T2a/MJT) and the Major Temperature Alarm will be
issued (Figure 4-1). This control algorithm is shown by the curve
labeled PRESET in Figure 4-1. The temperature displayed on
the LCD meter will read in degrees Fahrenheit.
This temperature control function is recommended for the
Lucent Technologies VR Series battery to maximize the
battery's life and performance when used in a controlled
environment. If the battery plant is being used in a different
application, please refer to Section 4.3 for additional information
about selection of an appropriate control function.
The preset state for the recharge current compensation feature is
in the disabled state. When the feature is enabled, the recharge
current will be limited to 37.5 amps per battery string. The
recharge limit should be set at a value that is no less than 10% of
the ampere-hour capacity at the 10 hour rate.
Other
Considerations
The Battery Management System has the flexibility to
accommodate a variety of environments. This allows the user to
configure the system to maximize battery life and capacity while
Table 4-A: DIP Switch Presets
SW100
SW101
SW102
1
2
3
4
1
2
3
4
1
2
3
4
1
0
0
1
0
1
0
0
1
0
1
0
