Alpha Technologies XM2-300CE-HP - Manual (Page 48)

Charger Accept Voltage: Battery Accept charge voltage control in volts per cell. This voltage,
2.40Vdc (adjustable) per cell, is temperature compensated to ensure longer battery life. It
properly completes the charge cycle and is factory set for AlphaCell batteries. If another
manufacturer’s batteries are used, consult the battery manufacturer for Accept voltage levels.
Charger Float Voltage: Battery Float charge voltage control in volts per cell. The average is
approximately 2.27Vdc (adjustable) per cell. It is factory set for AlphaCell batteries. If another
manufacturer’s batteries are used, consult the battery manufacturer for Float voltage levels.
Charger Temperature Compensation: Battery charger temperature compensation control.
Programming this parameter to “0.0” disables temperature compensation. It is factory set for
AlphaCell batteries (5mV/cell). If another manufacturer’s batteries are used, consult the battery
manufacturer for Charger Temperature compensation ranges.
Date of Last Conductance (MHO’s) Reading: The date the last conductance test was
performed on the battery.
End of Battery Discharge (EOD): The point at which the battery is fully discharged (default
1.75V/C * 6 cells) and the power supply shuts off, preventing permanent damage to the
batteries.
Frequency Range Limit: AC input voltage frequency range limit. This limit establishes the
acceptable input frequency range outside of which standby operation is initiated.
Output 1 Overcurrent Trip level: Primary leg: Value of RMS current that causes an
overcurrent trip on the Output 1 + Output 2 protection relay after a specified delay. This limit is
linked to counter data item Overcurrent Tolerance Period. This parameter is only visible when
the Protective Interface Module (PIM) is installed.
Output 2 Overcurrent Trip level: Secondary leg: Value of RMS current that causes an
overcurrent trip on the Output 2 protection relay after a specified delay. This limit is linked to
counter data item Overcurrent Tolerances Period. This parameter is only visible when the
optional PIM is installed.
Major Conductance Alarm: The alarm issued when the battery conductance is below the
critical level. This is an indication the battery is near the end of its useful life.
Minor Conductance Alarm: The alert issued when the conductance of the battery has dropped
below the preset minor limit. This is an indication the battery is aging and may require close
observation.
4.0 Operation, continued
4.6 Smart Display Glossary
Battery Capacity: The capacity of the battery strings attached to a particular XM2-300HP.
When batteries are not attached, the setting must be programmed to “0.” This disables standby
operations, including test mode, and disables the No Batteries Alarm. If batteries are attached,
then this setting should be programmed to the total rating of all the battery strings.
Battery Conductance (MHO’s) Reading: The battery conductance is measured in Siemens
and can be determined using a battery analyzer. This measurement is related to the internal
resistance of the battery and is useful in evaluating and maintaining the battery.
Battery Date Code: This is the battery’s date of manufacture and is used to determine the age
of the battery.
Battery Life Expectancy: The Manufacturer’s expected service life of the battery.
Battery Type: The AlphaCell battery type can be specified in the smart display (if not AlphaCell,
leave as default battery type, Other). If AlphaCell is selected, Accept, Float, Temp, Comp and
Battery Capacity is automatically selected. If Other, these parameters will need to be manually
set to the manufacturer’s recommended rating.
If AlphaCell is selected, Accept, Float, Temperature Compensation, and Battery Capacity are not displayed.
NOTE:
48 017-877-B1-001 Rev. A