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On-the-fly Sensorless startup
On-the-fly Sensorless startup
The “On-the-fly” sensorless startup is a new algorithm able to detect if the motor is running
before the startup and skip the acceleration phase if not necessary. If the motor runs with a
speed that is above the allowed threshold, the firmware apply the FOC from the beginning,
without need to stop it and re-start.
This feature is particular useful for fan application.
It is possible to enable this feature only when Sensor-less (Observer+PLL) or Sensor-less
(Observer+Cordic) is selected in the Drive Management – Speed Position Feedback
Management dialog.
To enable this feature check the “startup on Fly” check box in the Drive management.
Start-up parameters dialog like shown in Figure 5 and Figure 6.
Figure 5. Enabling “On-the-fly” start-up with Basic profile
DocID018802 Rev 6
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