Contactors – GE Industrial Solutions Pulsar Plus Controller User Manual

Page 83

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Pulsar Plus Controller Family

Issue 7 December 2011

83

Table 26 Batteries Configuration


End of Dchrg


The user defined system bus voltage at which the batteries are considered to be
at the end of their reserve capability for manual battery testing (End of
Discharge). This end-of-discharge voltage is used for automatic and
opportunistic reserve time calculations.

This setting has a range of -40.25V to -48.75V and 19.25V to +25.35V +21.00
with factory default of -42.00V and +21.00V for 48V and 24V systems,
respectively.


Battery Temp
Management*


This section includes all the parameters required for thermal management of
the batteries. Parameters include the ability to enable/disable thermal
compensation for high and low temperatures and set the slope decrease and
increase rates, respectively. There is also a High Temperature alarm threshold,
High Temperature Disconnect feature.

Thermal compensation features are factory defaulted Enabled for Valve-Reg
batteries.


Batt Test*


This section includes all the parameters required for battery testing through
manual or automatic means. Configuration for manual test duration and the
system test end-voltage for manual battery test are here along with the
interval, start date, start time, time from last battery on discharge BD, and
enable/disable for periodic battery test. The rectifier voltage during battery
discharge testing and system reserve time low alarm threshold are also
available.

Automatic battery testing is factory disabled.


Recharge Amp Limit


Enable or disable battery recharge limiting and set recharge current limit. When
enabled, the controller will regulate the current into the batteries to be below
the setting.

Recharge current limit is factory Disabled. The current limit range is 5 to 1000A
and has a factory default of 50A for Valve-Reg batteries.


Voltage Imbal

User defined voltage threshold for a mid-string voltage imbalance alarm.

Range 1.4 - 3.0 Volts. The factory default is 1.7V for Valve-Reg batteries. This
alarm is only generated after batteries have been sitting on float for a minimum
of 12 hours and the total battery current is less than 3A.


*See Appendix C for detailed descriptions of the Thermal Compensation and Battery Test features and
parameters.

Contactors

The Pulsar Plus family of controllers utilize distribution monitoring and control boards to control contactors.
These boards include the ES772, QS871, and the NE872 modules. Each of the boards in the system must be
assigned to LVD contactor control by appropriately configuring a unique board ID on the board and
associating it to a specific contactor function at the controller.

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