Service Manual, 20-300 kW FR II (TP-5353) - ImageEvent

Features
The numbered paragraphs following refer to Figure 2-4.
1. Low Water Temperature (LWT)/Auxiliary.
Flashing or continuously on lamp indicates a fault
has occurred.
Flashing Lamp Conditions
The LWT/auxiliary lamp will flash immediately if
the controller senses no AC output while the
unit is running (except during first 10 seconds
after start-up). When AC output is sensed, the
flashing will stop and the lamp will be off. No
manual reset is required.
The LWT/auxiliary lamp will flash if the battery
power was reconnected or was low and then
came back up again while the generator master
switch was in the RUN or AUTO position. A
temporarily low battery condition where the
battery is weak or undersized for the application
may cause this condition. Place the master
switch in the OFF/RESET position to clear this
condition.
Continuous On Lamp Conditions
The LWT/auxiliary lamp lights and unit shuts
down immediately if the optional emergency
stop switch is activated (if equipped with
optional emergency stop switch).
The LWT/auxiliary lamp lights if the optional
emergency stop switch is reset while the
generator master switch is in the AUTO or RUN
position. Place the generator master switch in
the OFF/RESET position to clear this condition.
The LWT/auxiliary lamp lights and engine shuts
down 5 seconds after high oil temperature
(P1-13), low coolant level (P1-14), or aux. delay
shutdown (P1-15) faults (if so equipped) occur.
These conditions are inhibited during first 30
seconds after crank disconnect.
The LWT/auxiliary lamp lights and engine shuts
down immediately if overvoltage condition
arises (if equipped with overvoltage shutdown
kit).
The LWT/auxiliary lamp lights and engine shuts
down if activated by customer-supplied sensing
devices connected to auxiliary immediate
shutdown ports (P1-17 and P1-18).
The LWT/auxiliary lamp lights if engine low
water temperature (P1-24) condition occurs (if
sensor equipped).
2. Overspeed. Lamp lights if set shuts down due to
overspeed condition (governed frequency
exceeding 70 Hz).
3. High Engine Temperature. Lamp lights if engine
has shut down due to high engine coolant
temperature. Shutdown occurs 5 seconds after
engine reaches temperature of shutdown range.
4. Air Damper. Lamp lights after emergency stop or
overspeed fault or overvoltage fault. Lamp
indicates that engine air damper is closed; lamp
remains lit until air damper is manually reset. See
Resetting Emergency Stop Switches later in this
section. (Used on 200-1600 kW models with
Detroit Diesel engines only).
5. Overcrank. Lamp lights and cranking stops if
engine does not start after 45 seconds of
continuous cranking or 75 seconds of cyclic
cranking. See Auto Starting.
Cranking stops and overcrank lamp lights after
15 seconds if starter or engine will not turn
(locked rotor).
Overcrank lamp flashes if speed sensor signal
is absent longer than one second.
NOTE
The 6-light controller is equipped with an automatic
restart function. The generator set will attempt to
restart if the engine speed drops below 13 Hz.
Decreased engine speed causes an overcrank
condition.
TP-5353 8/94 Operation 2-11