TP-6728 10/11 17Section 2 Operation
2.3.4 Fault Warnings and Shutdowns
Warnings. The controller displays a fault code but the
generator set does not shut down under the high battery
voltage (HB) and low battery voltage (LB) warning
conditions shown in Figure 2-3. The controller resets
automatically after a battery voltage fault condition is
corrected.
Shutdowns. The generator set shuts down
automatically under the conditions listed in Figure 2-4
and the controller displays a fault code. Correct the fault
condition and then reset the controller before restarting
the generator set. See Section 2.3.5 to reset the
controller after a fault shutdown.
Shutdown switches on the generator set automatically
reset when the problem is corrected. For example, the
high engine temperature switch automatically resets
when the generator set cools. However, the fault does
not clear until the controller is reset.
LOP Shutdown. The oil pressure switch shuts down
the generator set if the oil pressure drops below a preset
level, providing some protection from major engine
damage due to insufficient oil pressure. However, the
low oil pressure switch is not a low oil l evel indicator.
Check the oil regularly as described in the service
schedule and add oil as required to keep the oil level at
or near the full mark on the dipstick or optional gauge.
Code Fault Description Check
HB High battery
voltage warning
Fault code is displayed if the engine starting
battery voltage rises above 16 VDC for a
12 VDC system or above 30 VDC for a 24 VDC
system for more than 10 seconds when the
engine is not running. This fault condition does
not inhibit engine starting.
The fault condition clears when the battery
voltage returns to a voltage within the limits for
more than 10 seconds.
Check the battery rating and condition.
LB Low battery
voltage warning
Fault code is displayed if the engine starting
battery voltage falls below 9.5 VDC for a 12
VDC system or below 16 VDC for a 24 VDC
system for more than 10 seconds when the
engine is not running. This fault condition does
not inhibit engine starting.
The fault condition clears when the battery
voltage returns to a voltage within the limits for
more than 10 seconds.
Check the battery rating and condition.
Charge or replace the battery.
Figure 2-3 ADC 2100 Fault Warning Codes
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