Detection arrangement for switching unit

摘要

The voltage source (G1) is an AC voltage source and the output signal of the AC voltage source is directed as a reference signal to a further input of the evaluation unit (Microprocessor). It is suppliable, for carrying out a comparison of the detection signal and the reference signal, in amplitude, frequency and-or phase. The detection signal is suppliable to the input of the evaluation unit (processor) across a threshold value switch (SS). The detection signals are suppliable to the evaluation unit across an Optocoupler (OK1).