Nastec ANDO VASCO - Motor Parameters

Parameter Default Description 1 2 3 4 5
Alternance
ON/OFF
ON Enabling the alternation between units in COMBO and D.O.L.
The order of priority of operation is alternated based on the
previous start-up of each pump in order to obtain an almost
uniform wear of the pumps.
x x
Altern. period
t = XX [h]
0 Maximum difference in operating hours between multiple devi-
ces in the unit.
0 means 5 minutes.
x x
COMBO synchrony
ON/OFF
OFF Through this parameter it is possible to activate the synchro-
nous operation of the pumps in COMBO. Read the dedicated
chapter.
However, it is necessary to lower parameter Freq.min.control
accordingly.
x x
Start delay AUX
t = XX [s]
00 Time delay with which the pumps in a group start up after
the variable speed pump has reached the maximum motor
frequency and the measured value has fallen below the differ-
ence Set value - Delta control.
x x
PI control
Direct/Reverse
Direct PI control mode:
• Direct: as the pump speed increases, the measured value
increases.
• Reverse: as the pump speed increases, the measured value
decreases.
x x
Periodic autorun
t = XX [h]
00 Periodic pump start-up after X hours of inactivity. The value 0
disables the function.
x x x x x
Dry run cosphi
cosphi = X.XX
Cosphi value that is measured when the pump is running dry.
Below this value the device stops the pump and generates a
water shortage alarm.
If the motor is of the synchronous type with permanent mag-
nets, this parameter represents the percentage with respect to
the rated current set below which the device stops the motor
and generates the no-water alarm.
x x x x x
Restarts delay
t = XX [min]
10 Time base that establishes the delay of attempts to restart the
pump following a no-water alarm. With each attempt, the delay
time is doubled. The maximum number of attempts is 5.
x x x x x
Change PASSWORD1
Press ENT
By pressing the ENT key it is possible to change the installer
level password (level 1) (default 001).
x x x x x
9.8. Motor parameters
Parameter Default Description
Motor type
XXXXXXXX
Threep-
hase
asyn.
Type of motor connected and control used:
• Singlephase PSC: control for single-phase 2-wire PSC motors.
• Threephase asyn.: control for three-phase asynchronous motors.
• Synchronous PM: control for permanent magnet synchronous motors.
• Scalar: V / f scalar control.
Rated motor Volt
V = XXX [V]
Rated voltage of the motor according to its data plate.
The average voltage drop across the inverter is 20 to 30V RMS depending on the load conditions.
Voltage boost
V = XX.X [%]
Motor starting voltage increase to favor the starting torque.
Contact the motor manufacturer for more information.
Rated motor Amp.
I = XX.X [A]
Motor rated current according to its data plate increased by 5%. The voltage drop across the inverter
may result in a current absorption greater than the motor rated current indicated on the data plate. It
is necessary to check with the motor manufacturer that this overcurrent can be tolerated.
Rated motor freq
f = XXX [Hz]
50 Rated frequency of the motor according to its data plate.
Max motor freq.
f = XXX [Hz]
50 Maximum frequency intended to power the motor. Reducing the maximum motor frequency reduces
the maximum current consumption.
Min motor freq.
f = XXX [Hz]
30 Minimum motor frequency.
When using submersible pumps with Kingsbury type thrust system, it is recommended not to go
below 1750 rpm so as not to compromise the thrust system.
VASCO - VAriable Speed COntroller
40