[Help] Problems with Encoders and PID Control

[Ether]

Originally Posted by tStano

How would you use the voltmeter to tell whats wrong with the encoder? Just to see that it is indeed getting power and common?

That's a start.

The pulses on the output channels will probably be much too fast to be read without an oscilliscope, unless the encoder has really low resolution

Or unless you rotate it by hand, very very slowly... in which case you should see the signal waveform (especially with an analog voltmeter).