TP-6734 5/10
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Section 2 Operation
2.10.4 Engine and Transfer Time Delays
The engine start and transfer time delays prevent
engine start and load transfer caused by brief variations
in the utility power source.
The engine cooldown time delay allows the engine to
run after the loads have been removed. The engine
stops before the cooldown time delay expires if the
temperature drops below the cooled-down temperature
level, or if the temperature rises during the cooldown
cycle.
2.10.5 Load Control Time Delay
The load control time delay allows delayed starting of
large motor loads (such as air conditioners), preventing
simultaneous starting of large motors after transfer to
the generator set. The load control time delay is fixed at
5 minutes. It is not adjustable.
The load must be connected to the load control output
on the interface board of the model RRT transfer switch.
See the transfer switch operation and installation
manual for connection instructions.
2.11 Event History
The last ten controller faults can be viewed from the
controller display when the controller is off. Each event
is displayed with the fault code followed by the engine
hours at which time the event occurred. During event
history viewing, the OFF LED flashes once per second.
Procedure to View Event History
1. Press and hold the OFF button for 3 seconds. The
first event appears on the screen. The OFF LED
flashes once per second.
2. Press the OFF button to cycle through the engine
hours and subsequent events. After cycling
through all ten events, the control automatically
turns off.
The OFF LED flashes once every 2
seconds.
To stop viewing the event history before the last event,
press the down arrow or exercise button. The controller
will turn off.
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