For our test, we will take our test electro motor where two encoders are mounted on each side with a spring to produce high torsional vibration. Both encoders are connected to the counter input. First let's do the rotational vibration.

We don't need to set anything in the analog or counter channels. Let's just go to the Torsional vibration tab where we can add the new module by clicking the  +  button. Next we select the First sensor input . Since we have connected the first sensor to B0_CNT0, we need to select it from the list. Please note that CNT1, CNT3 and CNT5 are not available, since they will be used internally to calculate the exact frequency.

Then we define the Sensor. In our case we have 512 pulses per revolution, so we choose Encoder-512. If the sensor used is not defined so far, we need to create it in the Counter sensor editor by clicking the three ellipsis button the right to the sensor drop down menu. Next we need to set the Input filter for the counters. The input filter is needed to prevent glitches and spikes in the signal. The Rotational DC filter needs to be set to cut the DC component out of the RPMs. We need to set the filter to include all wanted frequencies, but not too low, else we will have static DC deviations on the output signal .

Rotational vibration channel setup

The output channels are Rotational angle (filtered angle value of vibration), Rotational velocity (filtered velocity vibration value), X axis reference angle (the reference angle, which is always from 0 to 360 and can be used as a reference in angle based xy diagrams) and Frequency [RPM] in unit of RPM .