TP-6953 7/19 39Section 2 Operation
The operator should perform all of the prestart checks.
Start the generator set according to the starting
procedure in the controller section of this manual. While
the generator set is operating, listen for a smooth-
running engine and visually inspect the generator set for
fluid or exhaust leaks.
2.6 Controller Operation
Note: Opening seacock. Before starting the generator
set, open the seacock to allow cooling water
passage. Failure to do so could damage the
seawater pump impeller and cause serious
engine overheating damage.
Note: Transfer switch. Check t hat the marine
ship-to-shore transfer switch, if equipped, is in
theshipposition.
Note: If the generator set does not start after 3 crank
attempts (an overcrank fault occurs):
1) Close the seacock.
2) Completely drain the water from the
exhaust system at the silencer ’s drain plug.
3) Do not attempt generator set restart.
4) Contact an authorized Kohlerr distributor/dealer .
A water-filled exhaust piping and silencer may
further hinder generator starting and cause
seawater entry into the engine cylinders through
the exhaust valves. Water ingested into the
engine may cause major engine damage that the
Kohler Co. warranty does not cover.
The controller operation includes several types of
starting and stopping functions as detailed below. The
controller buttons, lamps, and alarm horn functions are
summarizedinFigure2-3.
There are three primary modes of operation, selected by
pressing the respective buttons:
D OFF
D RUN
D AUTO (Standby Mode)
When the OFF button is pressed, the generator set is in
OFF or goes to OFF and will not start. When the RUN
button is pressed, the generator set starts and runs until
the OFF or AUTO button is pressed or until a fault is
received. When the AUTO button is pressed, the
generator set enters the Standby Mode
(STANDBY-RUNNING or STANDBY-OFF depending
upon the start signal).
D OFF. If the generator set was previously running,
pressing the OFF button immediately shuts off the
generator set, with no engine cooldown. The
generator set remains off and will not respond to a
remote start signal.
D RUN—Local Start. A single generator set starts. No
other generator sets in the system will start (or stop).
D AUTO—Standby or System Ready. The generator
set is waiting for a start signal. The generator set will
start and run when a start signal is received via a
remote start, local auto-start, or communications-
based start.
All generator sets in the system (connected by PGEN
and in Standby Mode by pressing AUTO) will start
when any one of the generator sets receives a start
signal.
Any generator set in the system not in AUTO will not
start.
If Generator Management is on, some generator sets
may shutdown after a period of time.
With removal of the start signal, all generator sets will
shutdown with the appropriate engine cooldown.
D AUTO-RUN (Press AUTO and RUN together for a
system start signal). All generator sets in the system
start and run, close to bus, synchronize, parallel,
share load, etc. Some generator sets may shut down
after a period of time (indicated by Generator
Management) but they remain in Standby Mode
ready to start and run if needed.
D AUTO-OFF (Press AUTO and OFF together to
remove a system start signal, if AUTO-RUN is active).
All generator sets in the system open their breakers,
enter engine cooldown, shut down, and enter Standby
Mode. Closing the remote start contacts
accomplishes nothing. Generator sets in the system
will enter Standby Mode.
Start Signal
A start signal includes the following:
D Remote start signal via contacts 3 and 4. An ATS
(used during a power outage, exercise period, etc.) or
a remote panel used in the vessel take precedence
over all other start signals.
D System Start (AUTO-START). Press AUTO and
RUN simultaneously to send a start signal.
D Communications-based start message from
SiteTecht or a CAN-based remote panel.
Hardwired contacts (remote start contacts 3 and 4) have
priority over all other start signals. If the remote start
contacts are activated, the generator sets in the system
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