Yale 524150797, Maintenance Manual, Page: 268 / 382

Battery-BDI Empty Volts
The empty voltage level sets the Keyswitch_Voltage
that is considered to 0% state-of-charge when the
truck is been used (loaded conditions). The BDI (bat-
tery discharge indicator) algorithm continuously calcu-
lates the battery state-of-charge whenever KSI is on.
Battery-BDI Discharge Time
This parameter has two functions:
• Sets the minimum time for the BDI to count
down from 100% to 0%. If upon verification
battery voltage is below corresponding BDI
percent, BDI percent will decrement by one
percentage point.
• Sets the frequency at which the BDI will check
the battery voltage. If upon verification battery
voltage is below corresponding BDI percent,
BDI percent will decrement by one percentage
point.
Battery-BDI Reset Percent
When a battery has a high BDI percentage, its float
voltage at KSI On can sometimes cause false resets.
The BDI Reset Percent parameter addresses this
problem by allowing the user to define a BDI Percent-
age value above which the BDI Percentage variable
will not reset.
Undervoltage Cutback Range
Severe Undervoltage = Undervoltage point – Under-
voltage Cutback Range or Brownout voltage (15V)
whichever is higher. This parameter sets the voltage
range between the Undervoltage and Severe Under-
voltage points. A Severe Undervoltage fault will be set
if the capacitor voltage falls below either the Severe
Undervoltage point (drive current limit set to 0) or the
Brownout voltage (bridge disabled, motor current set
to 0).
User Undervoltage
Undervoltage = Either Min Voltage controller voltage
(16.8V) or User Undervoltage × Nominal Voltage,
whichever is higher. The User Undervoltage parame-
ter can be used to adjust the undervoltage threshold,
which is the voltage at which the controller will cut
back drive current to prevent damage to the electrical
system. The undervoltage threshold can never be
lowered below the controller’s power base minimum
voltage rating.
Total Maintenance Enable
This parameter will activate BDI maintenance re-
minder for truck to be serviced after certain amount of
total hours have been accumulated in the hour me-
ters.
Traction Maintenance Enable
This parameter will activate BDI maintenance re-
minder for truck to be serviced after certain amount of
Traction hours have been accumulated in the hour
meters.
Pump Maintenance Enable
This parameter will activate BDI maintenance re-
minder for truck to be serviced after certain amount of
Pump hours have been accumulated in the hour me-
ters.
Maintenance Interval
This parameter will sets the time interval at which the
truck shall receive regular maintenance.
Reset Total Maintenance
This parameter will set back to zero the maintenance
interval counter.
Reset Traction Maintenance
This parameter will set back to zero the maintenance
interval counter.
Reset Pump Maintenance
This parameter will set back to zero the maintenance
interval counter.
General Maintenance and Diagnostic Data ELECTRICAL SYSTEM
Check the Service Manual section in Yale Axcess Online for possible updates and check pertinent Bulletins
9030-03-12