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INTRODUCTION TO PROGRAMMING:
KEY DESCRIPTION
Left-hand arrow: this scrolls back through the menu pages
Right-hand arrow: this scrolls forwards through the menu pages
On-Off/Reset: this switches the device from stand-by to operation mode and
resets the unit in the event of alarms and/or faults.
“+” key: this increases the value of the parameter currently shown on the display;
“-” key: this decreases the value of the parameter currently shown on the display;
“AUTOSET”: this starts the self-setting procedure for the stop frequency function
INITIAL CONFIGURATION FOR SINGLE DEVICE INSTALLATION
In the case of single installations, power up the device and follow the instructions for initial configuration as described below.
On initial activation, a welcome screen is displayed and when any key is pressed, a guided configuration procedure is started up, enabling
the entry of the main parameters required for standard operation.
Modify the value of parameters using the keys + and – then confirm the entry by pressing the central key
to move to the next parameter. The parameters to be configured are displayed in the following order:
Parameter 2.0 – Serial address
: in the case of single installations with a single pump, leave this value at
1. If a pressurisation unit with multiple pumps is installed, set the number of the device in the serial bus
from 1 to 8. The value must correspond to the setting of the dip switch on the I/O board, as explained in
the previous paragraph. Each device must have a different serial address number to be distinguished from
the others.
Parameter 2.1 – Pressure sensor serial address
: in the case of single installations with a single pump,
leave this value at 1. If a pressurisation unit with multiple pumps is installed, set the number of the device
to which the pressure sensor and any other auxiliary inputs are connected.
The value must be the same for all devices as only one pressure sensor transmits the signal to all inverters.
Parameter 1.0 – Motor current:
set the rated motor current as stated on the pump electrical data plate.
In the case of multiple installations with several pumps, the value must be set for each inverter, as the
pumps may have different characteristics.
Parameter 0.0 – Pressure set point :
set the constant pressure value that the inverter must maintain in
the system. The pump rotation regime is varied according to the flow rate demand of the system, to
maintain pressure at the set value.
Parameter 0.1 – Pump start-up DeltaP:
set the value of the negative Delta with respect to the set point
pressure for pump start-up. For example, if the set point is 2.5 and the DeltaP is 0.3 bar, the pump starts
up at values below 2.2 bar.
Parameter 0.2 – Dry running pressure:
set a minimum pressure value, below which the dry running
protection device trips due to lack of water. In the case of pump operation at maximum speed, if the
pressure in the system falls below this value, the inverter shuts down the motor after a set delay interval.
To ensure correct operation of this protection device, the settable value must never be higher than the set
start-up pressure (obtained from the difference between the set point and the DeltaP values described above). Operation of the protection
device should be tested after installation. Also take into account the water column on outlet, if present.
Welcome
push any key
2.0 Serial
Address 1
1.0 Motor rated
current 0.5A
0.0 Pressure
setpoint 3.0 BAR
0.1 DeltaP
startpump 1.0
BAR
0.2 Dry running
press 0.5 BAR
2.1 Press.sensor
ser.address 1
