Practical Tips

Motor monitoring by means of a tachogenerator

A typical application for our universal isolation amplifier with bipolar input is motor monitoring with the aid of a tachogenerator.

The tachogenerator supplies output voltage proportionate to the drive speed. Depending on the direction of rotation, this voltage can be positive or negative, i.e. bipolar. This is how the actual value of the speed is determined, especially in the case of speed-controlled drives.

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