User manual

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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” is set to
Enabled then the engine speed is monitored for 10 seconds. If the engine speed
goes below the crank disconnect speed the controller attempts to restart the
engine/generator. If the Off key is pressed during these 10 seconds the engine
will go into the OFF mode without cooling down (if cool down is enabled).
At the same time, if the Warm-up sub menu is set to a value greater than zero, a
configurable output can be set to turn on (one of the configurable 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.
3.3.1.1 Locked Rotor
Locked rotor is a /genset protection feature using the oil pressure sender input.
To disable this feature set the Crank Oil Pressure in the engine logic menu to 0.
The Crank Oil Pressure is the lowest normal oil pressure seen while the engine is
cranking.
During cranking if the oil pressure is below the Crank Oil Pressure (engine logic
menu) and if the engine speed and AC frequency are both 0 the crank time is
shortened to 3s (including the time passed in cranking). If the genset has not
reached the crank disconnect speed, frequency or the Crank Oil Pressure at the
end of the 3s the GSC400 will stop cranking and go into a Locked Rotor Failure.
This feature limits damage to the generator if something is preventing the engine
crankshaft (generator rotor) from rotating.
3.3.2 Shutdown Sequence
When the OFF key is pressed while the engine/generator is running and if the
Cool-Down submenu is set to a value greater than 0 seconds the generator will