GE Industrial Solutions CPS6000 - Manual (Page 123)

CPS6000 –48V Indoor/Outdoor Power Shelf
Issue 21 January 2008
123
• 3A95-27L (VRLA)
• 3A95-33L (VRLA)
• 6A95-13L (VRLA)
• 3A125-33L (VRLA)
• Generic VRLA (Valve Regulated Lead Acid)
• Generic FLOODED (flooded lead acid)
• Generic NiCd (Nickel Cadmium)
• Generic Li-LMP (Lithium Metal Polymer)
• Generic Li-ELiTE (Lithium ELiTE)
Once selected the user has the opportunity to automatically accept the
Once selected the user has the opportunity to automatically accept the
standard defaults for all battery Type related features. Parameters such as
float voltage, float alarms, thermal compensation parameters, etc. are
automatically adjusted if defaults are accepted. Two additional battery
types can be added to the list. Any battery type can be removed or added in
the field. The system factory default is VRLA.
String Capacity Capacity of an individual battery string in the system which is used to
derive the total installed system battery capacity. This value has to be
entered for “Generic” battery types but is automatically configured for
specific battery models. The available range is 0-9999 AH.
The system factory default is 0 AH.
Battery Strings The total number of battery string installed in the system entered by the
user for inventory purposes and initial reserve time calculations. This value
is automatically configured when using smart lithium batteries. Available
range is 0-16. The NX400 system factory default is 0 strings.
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. It has a range of -36.00 to -48.00V.
The system factory default is -44.00V.
Battery Temp
Management This section includes all the parameters required for thermal management
of the batteries. These items 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.
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.
Recharge current limit is factory Enabled at 50A.
Voltage Imbal User defined voltage threshold for a mid-string voltage alarm. Range 1.4 -
3.0 Volts. Factory default is 1.7V. This alarm is only generated after
batteries have been sitting on float for a minimum of 24hours.
*See Appendix A for detailed descriptions of the Thermal Compensation and Battery Test
features and parameters.