Device for the controllable operation of out-of-balance...

Details Device for the controllable operation of out-of-balance... Device for the controllable operation of out-of-balance...

B - Operations, Transporting

65

G

318/82

B65G 27/24 (2006.01) B65G 27/32 (2006.01) H02P 23/06 (2006.01)

Patent

CA 1278334

ABSTRACT Disclosed is an arrangement for controllable adjustment of rotational speed as well as braking of unbalance drives with three-phase motors by cycled switching, on and off, of a current supply by means of electronic switching gear. A central signal splitter and interlock stage is provided, which is supplied with synchronising pulses from a main power supply and which acts on the electronic switching gear through oscillator stages. The switching stage is connected on its input side with a start-stop switching and interlock unit, a runup-time stage, a controllable multivibrator and a braking phase angle control stage that is controlled by means of a time stage. Two phases of the current supply are by-passed by electronic switches during braking.

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