Participants suggest examining the tachogenerator's construction. In addition, the dc tachogenerator output is a pulsating voltage, and its alternating component has a significant influence on the speed feedback. A tachogenerator in an industrial machine is responsible for transmitting information about the actual rotational speed to the drive system, which is why an incorrect signal can cause unstable drive.
Tachogenerator | PPTX
What causes the fanuc tachogenerator disconnect alarm
The alarm triggers when the servo amplifier loses feedback from the motor encoder
Common causes include encoder failure,. A tachogenerator is a small dc generator designed to output a voltage directly proportional to the speed of a rotating shaft. A tachogenerator is attached to the object whose speed is being measured — such as a fan or motor shaft — and evaluates the voltage of the power produced by the generator to determine the rotational speed. I'm currently having trouble with detecting the rpm frequency from a tacho generator signal
I have tried everything i know My tacho generator is attached to a universal washing machine motor,. Obviously the output voltage is proportional to the speed