Digital encoders

Rough estimate is that the misalignment has to be quite drastic to have a significant effect.

I've seen no more comment and decide to explain a bit more...

Oscillations are an important concept concerning system stability and inhibited during the design effort. That's also true for elevator speed control that forms a negative feedback loop.

Digital Encoders are much more robust components than legacy revolution counters. They deliver "pulses" proportional with the shaft speed and direction.

Could it be true that you have used the term 'oscillations' instead of 'pulses'??

If so, don't forget that receiver of motor driver already waiting for this "pulses". They are measuring signals, not oscillations. You can not mention about a signal as oscillation because it is digital.

You can say "these things" introduce parasitics if you can measure "pulses" output of "these things" DURING SHAFT STOPPED. Then, this means that you are using a faulty component and must renew it!

Any new or functional encoder produce no pulse while stopped.

An encoder misaligned if you misalign it during installation. It can't be misaligned inside itself unless it is knocked mechanically.

The last word "distorted output" is not couse of rotation but concerns the "digital signal transfer" and achived confortably thanks to the line tranceivers. Think of the industrial networks that many instrument communicate with each other being far from a lot hundreds meters away.

Elevators are important vehicles regarding security... Good Luck!

Thank you for your comment