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TP-6880 10/1424 Section 2 Generator Set Operation
2.5 Faults
The RDC2/DC2 controller displays fault messages for
generator set warnings and shutdowns. Selected fault
messages are shown in Figure 2-3.
2.5.1 Warnings
The controller displays a fault message but the
generator set does not shut down on a warning. The
controller resets automatically after a warning condition
is corrected.
2.5.2 Shutdowns
Under a fault shutdown condition, the generator set
shuts down automatically and the controller displays a
fault message. The OFF LED flashes. In some cases,
the engine cooldown cycle runs before the engine shuts
down. See Figure 2-3.
Shutdown switches (such as the low oil pressure switch
or high engine temperature switch) on the generator set
will automatically reset when the problem is corrected.
However, the fault condition at the controller does not
clear until the controller is reset.
The generator set cannot be restarted until the fault
condition is corrected and the controller is reset. See
Section 2.5.4 for instructions to reset the controller after
a fault shutdown.
2.5.3 ATS Commun ication Errors
When a Model RXT transfer switch is used, an ATS fault
indicates that the connection to the interface board on
the transfer switch has been lost. Check the connection
to the ATS interface board.
2.5.4 Resetting the Controller after a
Fault Shutdown
Always identify and correct the cause of a fault
shutdown beforeresetting the controller.Check thefault
message displayed on the controller and refer to
Figure 2-3 to identify and correct the fault condition
before proceeding. Contact an authorized
distributor/dealer for service, if necessary.
RDC2 Controller
Press the OFF buttonto resetthe controller,or followthe
procedure below. See Figure 2-2.
1. While the fault message is displayed, press the
Select button to go to the Overview menu.
2. Press Select again. The active fault message is
displayed.
3. PressSelect.Confirm ClearFault:NO isdisplayed.
4. Press the Down arrow button. Confirm Clear Fault:
YES is displayed.
5. Press the Select button to enter YES and clear the
fault.
6. Press the Select button to return to the overview
menu. The controller changes to OFF mode.
7. PressAUTO to putthe generatorset intoautomatic
mode.
DC2 Controller
Press the OFF button to clear the fault message on the
controller.
Overview ---->
1.2 h
Fault Message
tp6809
Confirm Clear
Fault: NO
Confirm Clear
Fault: YES
Fault Message
Press Up arrow button.
Figure 2-2 Clearing a Fault on the RDC2 Controller