Motor with encoder zero phase compensation method and deviceⅢ

In order to ensure that the entire process of writing compensation angle and compensation angle write in and read out EEPROM is correct, consider the following four points:

• For some single turn absolute encoders, after power-on, it is necessary to rotate a certain angle α to output the value of the nominal resolution, and the numerical resolution of the output in α is relatively low. However, if the angle of rotation of the motor after the motor is DC is less than α, the absolute accuracy of the absolute encoder read by the CPU is low, resulting in a large zero correction error, which will reduce the performance of the servo drive. Therefore, the motor rotor must be rotated through the angle α during zero calibration.
  
• Corresponding split absolute encoder, due to assembly reasons, may cause errors in its feedback data, so the feedback data must be checked before obtaining the compensation angle.
  
• After calculating the compensation angle, pass the trial run to verify the correctness of the compensation angle.
  
• After the compensation angle is written into the EEPROM, it needs to be read back to ensure correct reading and writing of data.
  

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