40 GC250 Technical Manual
EAAM057608EN
For all these measures you can choose standard sensors with the most common resistance
values directly from the configuration parameters of each individual sensor by using the
controller or, through the BoardPrg3 program, you can define known generic curves at least
two couples of resistance points/value of the size to be measured, see par. . 5.7.3.
At the same time, it is possible to match a curve voltage/value of the measure for the two
analogue inputs in voltage
T.16
and
T.09
.
To every analogue input is associated a set of 7 parameters to define the type of function, an
alternative denomination and a series of thresholds and general configurations usable for
different functions; below are shown as examples those relative to the input
T.13
. For the
parameters of the other inputs, refer to documents [1] or to the configuration page I/O of
BoardPrg3.
INFORMATION!
:
On BoardPrg3 the parameters are all displayed only when the
input is really configured ad analogue input and not, for example, as digital.
We have:
One parameter, which configures its function (P.4009 for input
T.13
).
Two thresholds consisting of three parameters each:
▪
One parameter, which configures the threshold value (P.4011 and P.4014 for
input
T.13
).
▪
A parameter which configures the
delay to manage the “out of threshold”
(P.4011 and P.4015 for input
T.13
).
▪
One parameter, which configures the checking options and the actions in case
of “out of threshold” (P.4013 and P.4016 for input
T.13
).
INFORMATION!
: the thresholds defined here do not depend on any threshold set
within the menus “Protections”
; for example, for the coolant temperature sensor you can
set a high temperature threshold through the parameter P.0337 to stop the engine and a pair
of independent temperature thresholds through the parameters described above, used to
create other alarms, different signals or logics.
The two thresholds are completely independent on each other. The third parameter of each
threshold is a “bit” parameter that allows you to associate to each threshold the following
options:
Bit 0 If this bit is “OFF”, the controller checks if the measure is higher than the
threshold. If this bit is “ON”, the controller checks if the measure is lower than the
threshold.
Bit 1. If this bit is “OFF”, the controller sets to OFF the internal status related to this
ANALOGUE measure if the measure is “out of threshold”. If this bit is “ON”, the
controller sets to ON the internal status related to this ANALOGUE measure if the
measure is “out of threshold”.
Bit 4. If this bit is “ON”, the controller issues a warning if the measure is “out of
threshold”.
Bit 6. If this bit is “ON”, the controller issues a deactivation command if the measure
is “out of threshold”.
Bit 7. If this bit is “ON”, the controller issues a lock command if the measure is “out of
threshold”.
Bit 8. If this bit is “ON”, the controller activates a fault only if the engine is activated.
Bit 9. If this is a bit “ON”, the controller activates a fault only if the time of covering the
alarm of low oil pressure has passed.
