Question:
How is - in case of a sine cosine encoder - the peak-to-peak voltage of 1 V, indicated in the data sheet, generated?
Answer:
In case of sine cosine encoders the peak-to-peak voltage is generated by subtracting the corresponding negated track signal (sine/cosine track) from the not negated track signal. Generally, this peak-to-peak voltage Vss is 1 V (f_limit is indicated in the corresponding data sheet). According to the encoder manufacturer the peak-to-peak voltage can vary in a tolerance range of approx. 200 mV.
The attached oscilloscope trace shows three signal sequences when the motor speed is 2000 rpm. Blue = output signal of the sine track, light blue = negated output signal of the sine track, red = signal sequence after mathematical subtraction.
