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Normally the fuel remains off in the AUTO mode until Preheat is entered. For electronic
engines some applications require that the ECM (which is powered by the Fuel Relay
output) to be powered in the AUTO mode in order to start the generator as quick as
possible. The J1939 menu has settings to allow the fuel output to come on in the AUTO
mode. See section 6.1.1 on page 52.
After the preheat (glow plug) time, the crank output is turned on for the duration
specified by the
Crank Time
.
If the engine speed does not go above the
Crank
Disconnect Setting
before the crank time then the crank output is turned off and the
controller waits a period specified by the
Crank Rest Time
. The locked rotor condition
THE FIRST 2 SECONDS OF
IT THE VOLTAGE DIP DURING CRANKING.
cool
s
speed goes below the crank disconnect speed the
e engine/generator. At the same time, if the
Warm-up
sub
the
is also checked while cranking (see
6.5.1.1 Locked
Rotor
below). The fuel output is also
turned off unless the “
Fuel On During Crank Reset
” is enabled.
THE LCD WILL TURN OFF DURING
CRANKING TO LIM
If the
Midheat
Time is greater than zero, the glow plug output remains on during
cranking but not during crank rest. The glow plug output turns off if a crank failure
occurs, once crank success is reached (unless the PostHeat is set to a value greater than
0s), or if the Midheat time expires.
After the crank rest delay expires, the controller turns on the fuel and crank outputs and
attempts to start the generator again. This is repeated until the number of tries equals the
Crank Attempts
. If the controller cannot start the generator after the set number of
crank attempts, the failure state is entered and an
over crank failure
is displayed on the
screen.
If the generator starts successfully and the “
Restart on False Start
” submenu is set to
Enabled then the engine speed is monitored for 10 seconds. If the Off key is pressed
uring these 10 seconds the engine will go into OFF mode without cooling down (if
d
down i enabled). If the engine
ontroller attempts to restart th
c
menu is set to a value greater than zero, a digital output can be set to turn on (one of
digital outputs or Extra relay must be set to “Warm Up”) when the warm-up is finished.
This is used to disengage any load or potential loads until the gen-set is warmed up.
During the Warm-up time the output remains off.
Once the controller enters the Running state and if the
PostHeat
time is greater than 0,
the glow plug output is turned on for the duration of the PostHeat time.
6.5.1.1
Locked Rotor
The GSC400 has a safety feature where a locked rotor condition will be detected. This
applies to generators only. To disable this feature set the
Crank Oil Pressure
in the
Summary of Contents for GSC400 Series
Page 15: ...Figure 4 General GSC400 System Wiring Diagram ...
Page 16: ...Figure 5 Digital IO Example ...
Page 105: ...105 of 105 ...