29
PARAMETER
SYMBOL SHORT DESCRIPTION
UNIT default min max step
3.9
ANALOG 2 CONFIG
AN2
Configuration of analogic input 2
-
0
0
1
1
The analogue input 2 can be set up in 2 different modes:
0
4-20 mA
The input is set up to read an analogue signal from 4 to 20 mA
1
0-10 Vdc
The input is set up to read an analogue signal from 0 to +10 Vdc
PARAMETER
SYMBOL SHORT DESCRIPTION
UNIT default min max step
3.10
PRESSURE SENSOR
PrS
Set up of connected pressure sensors
-
1
1
5
1
This parameter
sets up the number of pressure sensors in the
system and the reading priority assigned to
each sensor. The possible choices are:
1
n° 1
Pressure
sensor
No. 1 pressure sensor is connected at the analogue input 1; in case of a fault affecting the
pressure sensor (no signal from pressure sensor), the system is stopped and the message
PRESSURE SENSOR ERROR is shown.
2
n°2 Pressure
sensors,
mode 1
2 pressure sensors are located at analogue inputs 1 and 2; pressure reading priority is
assigned to sensor 1; in case of a fault affecting pressure sensor 1, the system
automatically goes on to read the data provided by the pressure sensor 2
3
n°2 Pressure
sensors,
mode 2
2 pressure sensors are located at analogue inputs 1 and 2; pressure reading priority is
assigned to the sensor 2; in case of a fault affecting the pressure sensor 2, the system
automatically goes on to read the data provided by the pressure sensor 1.
4
Diff 1-2
No. 2 pressure sensors connected to the analog inputs 1 and 2; the pressure value is the
difference between the value of pressure sensor 1 and the sensor value 2 (difference); the
operating logic becomes that of the circulator
5
Diff 2-1
No. 2 pressure sensors connected to the analog inputs 1 and 2; the pressure value is the
difference between the value of pressure sensor 2 and the sensor value 1 (difference); the
operating logic becomes that of the circulator
PARAMETER
SYMBOL SHORT DESCRIPTION
UNIT
defaul
t
min
max step
3.11 P SENSOR 1 F.S.
P1S
Pressure sensor n°1 range
-
1
1
3
1
3.12 P SENSOR 2 F.S.
P2S
Pressure sensor n°2 range
-
1
1
3
1
In these parameters, the connected
pressure sensors full-scale
value is
entered ( analogue inputs 1 and 2), according to the table:
0
10 bar
1
16 bar
2
25 bar
3
40 bar
PARAMETER
SYMBOL SHORT DESCRIPTION
UNIT default min max step
3.13 FLOW SENSOR
FwS
Set up of connected flow sensors
-
1
0
4
1
This parameter
sets up the number of flow sensors in the system
and the flow control logic used by the
system. The possible choices are:
0
NO
SENSOR
no connected flow sensor; because there is no sensor, DGBOX uses the OFF
FREQUENCY parameter to stop the pump at determinate frequency levels.
1
n°1 FLOW
SENSOR
1 flow sensor is connected. In this case, the sensor must necessarily be positioned
immediately downstream of the delivery mouth of pump 1 (at variable speed)
2
n°2 FLOW
SENSORS
2 flow sensors are connected. In this case, each of the 2 pumps has the flow sensor
immediately downstream of the delivery mouth and the DRY RUNNING operation of
each pump can be distinguished.
