The required pulse frequency can be calculated as a result of the number of pulses per revolution (PPR) and the maximum speed (RPM). The maximum pulse frequency is shown in the data sheet specifications for each encoder.
Generally this is 300 KHz, but can be up to 800 KHz with high-resolution encoders.
- Speed n = 3000 min-1
- Resolution of the encoder A = 1000 Imp./U.
- Required pulse frequency of the encoder
fmax = (nxA)/60
The required pulse frequency is thus 50 KHz.
This can now be compared with the maximum possible pulse frequency of the desired encoder.
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