GU641A Controller Operation Manual
34
Crank cutout Oil-P:
l
The crank cutout engine oil pressure, signal is from LOP sensor.
Crank cutout P-delay:
l
Used to configure the period from engine LOP switch opened or oil pressure reaches oil pressure
Crank cutout value to crank disconnection.
l
When parameter is configured as
“
0
”
, this function is inactive, and the conditions of judging stop
failure and not implementing crank process are inactive.
Idle time:
l
The duration of engine idle running.
l
When you choose the idle mode, the configurable relay defined as idle output is energised, idle
timer begins after start successfully, and the relay recovers to open after the idle time has expired.
l
When parameter is configured as
“
0
”
, idle function is inactive.
Pre-heat mode:
l
Used to configure the mode of preheat.
l
Optional 4 pre-heat modes, details refer to the description of 4.7 preheat function.
Pre-heat time:
l
The preheat duration before engine crank.
l
When parameter is set as
“
0
”
, pre-heat function is inactive.
Safety-on delay:
l
Used to configure the period from engine
’
s successful ignition to Genset stable running.
l
The protected functions of under speed, under voltage, under frequency, low oil pressure are
shielded by controller during safety-on delay.
CAUTION:
As some of the protection are disabled during safety-on delay, so the safety-on
delay should be set carefully and properly, this is very important, or it may
cause engine damage.
Cool down mode:
l
Used to configure the mode of cool down.
l
When parameter is configured as
“
0
”
, the engine will run at rated speed during cooling down.
When parameter is configured as
“
1
”
, the engine will run in idle during cooling down.
Cool down time:
l
The time permit for running without load before engine stop.
l
It is necessary to set cool down time, it can make the engine stop at a lower temperature after a
long time running with load.
Stop delay:
l
The maximum time permit for the engine stop.
l
After the fuel relay output is de-energised (fuel relay output is energised for N.O. type fuel valve),
fail to stop delay timer begins, when it time
’
s out if controller detects generator
’
s voltage exceeds
crank cutout voltage, or the speed exceeds crank cutout speed, or LOP switch is open, or oil
pressure exceeds crank cutout oil pressure, then stop failure occurs.
l
If the fuel valve is N.O. type, the fuel relay output is de-energised after Stop delay has expired.
