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FOC Motor SDK: Understanding STARTING_ANGLE_DEG in Sensorless Startup Mode

SF??r
Associate III

Hello,

just a short question: In Sensorless Mode the startup sequence works with "Align Step", where the Rotor starts from a fixed position. There is a define for the Motor Startup Angle (STARTING_ANGLE_DEG)... Is it relevant if there is 90 ° or 0 ° entered? 

We decide it to have 0 °, because there is a math operation with the rotation direction. (multiply -1 or 1 to the angle) and with 0, we get always the same start condition. 

Whats the purpose of this Parameter in Sensorless Mode? Could it we do it wrong and have a performance decrease?

 

Best regards

 

Sebastian

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