3.2.1
Controller Keypad
The RUN, OFF, and AUTO buttons control the
generator set as described in Figure 3-3.
Use the Select, Up arrow, and Down arrow buttons to
navigate through the menus and change settings, if
necessary. See Section 2.3 for operation instructions.
Button
Button Function
RUN
Starts the generator set. The engine start time delay is ignored.
OFF
Stops the generator set. The cooldown time delay is ignored.
During the engine crank cycle, pressing OFF will stop the crank cycle.
Press OFF to clear faults and reset the controller.
AUTO
Places the generator set in Automatic (standby) mode.
Down arrow
Use to navigate through menus and change settings. This manual contains instructions to navigate the
Select
controller menus and adjust settings on the RDC2 controller.
Up arrow
Figure 3-3 RDC2 Controller Pushbutton Operation
LED
RUN
OFF
AUTO
Utility Power Available *
Building on Utility Power *
Generator Power Available *
Building on Generator Power *
* These LEDs operate only if a Model RXT transfer switch is connected.
Figure 3-4 RDC2 Controller LED Operation
32
Section 3 RDC2 Controller Operation
LED Operation
Lights when the generator set has been started locally by pressing the RUN button.
Remote start and stop commands are ignored.
Lights for 2 seconds, then flashes every 2 seconds when the generator set and controller
are off. Remote start/stop commands have no effect. The exercise cycle will not run.
In Auto mode, OFF LED flashes quickly to indicate a fault shutdown. Attention required.
Identify and correct the fault condition before resetting the controller.
Lights when the generator is in automatic (standby) mode. Generator set will respond to
engine start and stop commands from the controller (for example, exercise start and stop
commands) or an ATS. Time delays operate as described in Section 2.3.
Lights when utility power is available.
Lights when the building load is connected to utility power through the RXT transfer
switch.
Lights when generator power is available.
Lights when the building load is connected to generator power through the RXT transfer
switch.
3.2.2
LED Indicators
LEDs above the RUN, OFF, and AUTO buttons indicate
the mode of operation as shown in Figure 3-4.
Power System LEDs indicate the status of the utility
power and the generator set, and indicate which source
is supplying power to the building (based on the position
of the RXT transfer switch).
Figure 3-4.
Note: The power system LEDs operate only if a Model
RXT transfer switch is connected. They will not
operate if a Model RDT or RSB transfer switch is
used.
See Figure 3-2 and
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