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6.5.4 Sensor Configuration Parameters
No.
P40
P41
P42
P43
P44
P48
Parameter
Sensor selection [0÷2]
Pressure Sensor Unit Of
Measure [BAR, PSI]
Full scale value for
pressure Sensor 1
4÷20mA [0.0÷25.0BAR] /
[0.0÷363PSI]
Full scale value for
pressure Sensor 2
4÷20mA [0.0÷25.0BAR] /
[0.0÷363PSI]
Zero Pressure Auto-
Calibration
Lack of liquid input [DIS,
ALR, ERR]
Unit of
Description
measurement
Sets the external pressure sensor parameters:
NOS
= no sensor
4÷20 mA Differential sensor =
Two individual 4÷20 mA pressure sensors.
This parameter sets the unit of measure (
pressure sensor. It affect the head view LED parameter (see
Par. 6.3.4).
Default: bar.
bar/psi
Setting of the full scale value of the 4÷20mA pressure sensor 1
connected to analogue inputs 17 and 18.
Default: depending on the type of pump.
bar/psi
Setting of the full scale value of the 4÷20mA pressure sensor 2
connected to analogue inputs 15 and 16.
Default: bar.
bar/psi
This parameter lets the user perform the initial auto-
calibration of the pressure sensor.
It is used to compensate for the offset signal of the sensor at
zero pressure caused by the tolerance of the sensor itself.
Procedure:
1. Access P44 when the hydraulic system is at a 0 pressure,
without liquid inside, or with the pressure sensor
disconnected from the piping: the actual pressure value of
0 is displayed.
2. Start the auto-calibration by pressing
6.2).
3. At the end of the auto-calibration, the 0 (zero) pressure is
displayed, or the "---" (---) message, if the sensor signal is
out of the permitted tolerance.
Enabling/disabling of the management of the lack of liquid at
the input (see par. 4.3.3, terminals 13 and 14).
It defines the behaviour of the unit when the lack of water
input is enabled and the switch is open:
DIS
the "lack of liquid" input"
ALr
(enabled) and upon opening of the circuit breaker reacts by
displaying the A06 rotary alarm and keeping the motor in
operation
Err
(enabled) and upon opening of the circuit breaker reacts by
stopping the motor and generating the corresponding E11
error. The error condition is removed when the switch
closes again and the motor is started.
Default: ERR.
en – Original instructions
d1
(DIS): the unit does not manage the information from
(ALr): the unit reads the "lack of liquid" input
(Err):The unit reads the "lack of liquid" input
BAr
PSI
,
) for the
or
(see Par.
33
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