Curtis PMC 1297 Manual
63
3c — PROGRAMMABLE SHARED PARAMETERS: BDI
Battery Discharge Indicator (BDI) Parameters
The battery discharge indicator constantly calculates the battery state-of-charge
whenever KSI is on. When KSI is turned off, the present battery state-of-charge is
stored in non-volatile memory. BDI information is viewable via the Spyglass display
and via the Test Menu of the 13XX programmer. Three parameters are used to adjust
the display.
The standard values for flooded lead acid and sealed maintenance-free batteries
are listed below.
BATTERY TYPE
FLOODED SEALED
Reset volts (VPC) 2.09 2.09
Full volts (VPC) 2.04 2.04
Empty volts (VPC) 1.73 1.90
Custom values can be entered based on specific batteries in consultation with a Curtis
applications engineer.
RESET VOLTS
The reset voltage parameter sets the voltage that is used to detect the 100%
state-of-charge point on a battery with no load. Whenever this voltage is present
for 6 seconds (except during regenerative braking) the BDI is reset to 100%. The
reset voltage value can be set from 0.90 to 3.00 VPC, in 0.01 VPC increments.
NOTE: These values are set without the decimal point, so the range appears as 90
to 300 (i.e., VPC × 100) on the programmer.
FULL VOLTS
The full voltage parameter sets the battery voltage considered to be a 100%
state-of-charge; when a loaded battery drops below this voltage, it begins to lose
charge. The full voltage value can be set from 0.90 to 3.00 VPC, in 0.01 VPC
increments. NOTE: These values are set without the decimal point, so the range
appears as 90 to 300 (i.e., VPC × 100) on the programmer.
EMPTY VOLTS
The empty voltage parameter sets the voltage considered to be a 0% state-of-
charge; when the battery remains under this voltage consistently, the BDI will
read 0% state of charge. The empty voltage value can be set from 0.90 to 3.00
VPC, in 0.01 VPC increments. NOTE: These values are set without the decimal
point, so the range appears as 90 to 300 (i.e., VPC × 100) on the programmer.
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