Erweiterte Motorkontrollen
Min motor frequency
This parameter prevents motor operation below a certain frequency, thus avoiding damage to the thrust bearing of the submersible motors.
Min motor frequency ramp
Motor can accelerate from 0 to the minimum motor frequency following a very fast ramp and then go through a slower ramp.
Adjustable V/f curve control
MIDA allows to choose between two different methods of torque control (voltage) versus pumps speed (frequency):
- constant torque (linear V/f)
- quadratic variable torque (squared V/f)
For centrifugal pumps, energy savings can be obtained by selecting squared V/f control.
Periodic autorun
It is possible to program automatic periodic autorun after a certain time of pump inactivity.
Settable carrier frequency: 2.5, 4, 6, 8, 10 kHz
If MIDA controls a submersible pump with long cables, it is possible to decrease the carrier frequency value to ensure longer motor life.
