Nastec MIDA 203, Руководство по установке, использованию и техническому обслуживанию

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Parameter Default Description 1 2 3 4 5
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-
chro-
nous Type of motor connected and control used:
• Singlephase PSC: control for single-phase 2-wire PSC motors.
• Threephase asynchronous: control for three-phase asynchronous motors.
• Synchronous PM: control for permanent magnet synchronous motors.
• Scalar: V / f scalar control.
Rated motor voltage
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 current
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 frequency
f = XXX [Hz]
50 Rated frequency of the motor according to its data plate.
Max motor frequency
f = XXX [Hz]
50 Maximum frequency intended to power the motor. Reducing the maximum motor frequency reduces
the maximum current consumption.
Min motor frequency
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.
Ramp up time
t = XX [sec]
Motor start ramp from minimum frequency (Min motor frequency) to maximum frequency (Max motor
frequency).
Slower ramps cause less strain on the motor and pump and therefore promote longer life. On the
other hand, response times are longer.
Excessively fast start-up ramps may lead to an overload in the inverter.
Ramp down
t = XX [sec]
Motor stop ramp from maximum frequency (Max motor frequency) to minimum frequency (Min motor
frequency).
Slower ramps cause less strain on the motor and pump and therefore promote longer life. On the
other hand, response times are longer.
Excessively fast stop ramps may lead to an overvoltage in the inverter due to the regenerative effect.
MIDA
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