96 GC250 Technical Manual
EAAM057608EN
o
Running
if the D+ voltage is higher than P.
0231.
From low and/or minimum oil pressure contacts. This control is enabled if parameter
P.0232 is different from zero and if digital inputs are configured to acquire the status
of the oil pressure switches (DIF.4221 and/or DIF.4222). The instantaneous status of
the engine is:
o
Idle
if all inputs are active (with engine stopped, in effect, the oil pressure gets
lower and these contacts are supposed to activated).
o
In movement
if at least one input is not active.
From generator voltage.
Two thresholds are available (P.0226 e P.0227), which
have to be both different from zero and P.0227 has to be major than P.0226 (otherwise
this check is disabled).
The instantaneous status of the engine is:
o
Idle
if the voltages measured on
all
generator phases are lower than
P.0226
.
o
In movement
if the voltage measured on
at least one
generator phase is
higher than P.0226, but
all
are lower than P.0227.
o
Running
if the voltage measured on
at least one
generator phase is higher
than P. 0227.
From generator frequency.
Two thresholds are available (P.0228 e P.0229),
which have to be both different from zero and P.0229 has to be major than P.0228
(otherwise this check is disabled).
The instantaneous status of the engine is:
o
Idle
if the generator frequency is lower than P.0228.
o
In movement
if the generator frequency is higher than P.0228, but lower
than P.0229.
o
Running
if the generator frequency is higher than P. 0229.
From CAN-BUS (ECU Interface) : if the engine signals the status of started on CAN-
BUS. This control is not used if the CAN-BUS connection is disabled (parameter
P.0700
“Engine type” set to 0).
The engine is generally considered:
Stopped if
all
previous checks (all those not enabled) sh
ow the “idle” status
consecutively for
five seconds
.
In movement
, if
at least one
of the previous checks show “in movement” or “running”.
Running
, if
at least one
of the previous checks show “running” consecutively for
at
least 0,2 seconds
.
9.5.2
Engine commands
The controller can handle the following different commands for engine management:
START
: command for the starter.
FUEL
: command for the fuel solenoid valve.
STOP
: stop command when energized.
PREHEAT
: command for Diesel engines glow-plugs preheating.
