Device for the convergence detection in a face conveyor (17), a mining machine (19) which is guided as well as a hydraulic shield removal (10) is operated with a longwall face of the underground stone carbon construction and berg, in which a measuring device for determining the distance between the machine (13) of the plate removal operation (10) and the brake (18) of the face conveyor (17) is provided, characterized in that the measuring device for measuring the distance between the machine (13) and the brake (18) from a on the machine (13) of the associated plate removal frame (10) is suspended and on the support control system (26) connected reed - rod (22) which includes, in the one hand, to the brake (18) of the face conveyor (17) mounted to the ring magnet (23) dips.
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