30
PARAMETER
SYMBOL SHORT DESCRIPTION
UNIT default min max step
3.14 UNLOCK SYSTEM ULS
Unlock function
h
0
0
99
1
UNLOCK SYSTEM: the UNLOCK SYSTEM function prevents the blockage of the mechanical seal or other
rotating pump parts, caused by long stoppage periods. If enabled (by setting the ULS parameter from 1 to
99 hours, with 1 h step), the function starts the pumps for 5 sec. at preset time intervals.
Each pump is controlled independently from the other, and the time count is reset at every start-up. The
variable-speed pump is started at minimum set frequency, while the fixed-speed pump is started at 50 Hz.
By setting ULS = 0, the function is disabled.
PARAMETER
SYMBOL SHORT DESCRIPTION
UNIT default min max step
3.15 VOLTAGE
V
Main voltage
V
400
230 400
-
Nominal supply voltage (main voltage)
PARAMETER
SYMBOL SHORT DESCRIPTION
UNIT default min max step
3.16
FORCE EXCHANGE
FE
min
0
0
999
1
This parameter forces the alternation of the pumps, every x minutes (programmable), in a variable speed
group. By setting the parameter to zero the function is disabled
It is typically used in groups, to hold in activity the reserve pump, which in normal operation would never
start.
PARAMETER
SYMBOL SHORT DESCRIPTION
UNIT default min max step
3.17 P SENS.1 CALIB
x
Calibration of pressure sensor 1
-
-
-
-
-
3.18 P SENS.2 CALIB
x
Calibration of pressure sensor 2
-
-
-
-
-
This parameters allow calibration (or recalibration) of the pressure sensors 1 and 2 , directly on the system,
by calibrating the zero (ZERO CALIB) and a reference pressure of your choice (REFERENCE VAL.), or back to
the factory calibration (STANDARD CALIB.)
You must have a pressure gauge auxiliary reference.
- Zero calibration (ZERO CALIB):
1. bring the system pressure to ZERO bar and check that the auxiliary pressure gauge reads zero bar.
2. enter the parameter ZERO CALIB pressing RIGHT arrow
3. Confirm the pressure zero by pressing ENTER
- Calibration of the reference value (REFERENCE VALUE)
1. enter the parameter REFERENCE VALUE pressing RIGHT arrow
2. set the reference pressure by changing the default value (5.0 bar) with the UP / DOWN arrows
3. Press START to start the pump
4. adjust the speed of the pump with the RIGHT / LEFT arrows until the auxiliary manometer indicates the
reference pressure set
5. when the auxiliary manometer indicates the set pressure, confirm the reference pressure by pressing
ENTER
6. return to automatic mode by pressing the ESC key.
- Factory Calibration (CALIB STANDARD)
1. enter the parameter REFERENCE VALUE by pressing RIGHT arrow
2. confirm the RESET factory with "Y" (yes), with the UP / DOWN arrows
3. Press ENTER to RESET; the output is automatic
