TP-6109 6/0312 Section 2 Operation
2.6.4 Starting the Generator Set
The following procedures describe starting the
generator set.
Local Starting (Nonautomatic). Move the generator
set master switch to the RUN position to start the
generator set at the controller.
Automatic (Auto) Starting. Move the generator set
master switch to the AUTO position to allow startup by
the automatic transfer switch or remote start/stop switch
(connected to controller terminals TB1-3 and TB1-4).
Note: The alarm horn sounds whenever the generator
set master switch is not in the AUTO position.
Note: The transient start/stop function of the
Decision-Makert3+ controller prevents
accidental cranking of the rotating engine. When
the generator set master switch is momentarily
placed in the OFF/RESET position, then quickly
returned to RUN, the generator set slows to
249 rpm and then recranks before returning to its
rated speed.
Note: The Decision-Makert 3+ controller ’s automatic
restart function attempts to restart the generator
set if the engine speed drops below 390 rpm
(generator output frequency of 13 Hz).
Continued decreased engine speed causes an
overcrank fault condition.
Crank Mode Selection
The Decision-Makert 3+ controller cranks continuously
for up to 45 seconds or cyclically for up to 75 seconds
(crank 15 seconds, rest 15 seconds, crank 15 seconds,
etc.) before overcrank shutdown. Select the crank
mode (cyclic or continuous) on the controller circuit
board terminal strip. For cyclic cranking, leave circuit
board terminal TB2-9 open. For continuous cranking,
attach a jumper between circuit board terminal TB2-9A
(ground) and terminal TB2-9.
2.6.5 Stopping the Generator Set
The following procedures describe stopping the
generator set.
Normal Stopping
1. Cooldown. Run the generator set at no load for
5 minutes to ensure adequate engine cooldown.
2. Stopping. Move the generator set master switch
to the OFF/RESET position. The engine stops.
Note: The generator set continues running during
a 5-minute cooldown cycle if a remote
switch or automatic transfer switch signals
the engine to stop.
Emergency Stopping
Move the generator set master switch to the
OFF/RESET position or activate the remote emergency
stop, if equipped, for immediate shutdown. The
controller AUXILIARY lamp lights and the generator set
shuts down on activation of the emergency stop switch.
The remote annunciator and/or A/ V alarms, if equipped,
signal an emergency stop.