Progressive low voltage disconnect (PLVD) is used
to implement the powernet management feature.
PLVD calculates disconnecting loads based on
battery voltage, ignition switch status, and engine
rpm. When battery voltage drops below a
predetermined value, house loads are turned off.
One minute before house loads are turned off, a
pop-up message will display in the ICU and an
audible alarm will sound.
The front reading lamp, spot lamp, and sleeper
lamps—designated as house loads—can be turned
back on after being shutdown by PLVD by pressing
on the light or light switch.
No alarm sounds before basic loads are turned off.
A time delay is implemented for the shutdown and
reactivation of loads to avoid unnecessary cycling
when battery voltage is close to shutdown
thresholds.
Loads disconnected by the PLVD will reconnect
when all of the following conditions are met:
•
ignition ON;
•
engine at 450 rpm or above;
•
batteries reach and maintain 12.7 volts for one
minute.
Electrical System
8.6
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