The invention discloses a control circuit for interlocking of elevator contactors. The control circuit comprises a first switch, a second switch, a third switch, a first fuse, a second fuse, a third fuse, a first resistor, a second resistor, a third resistor, a first button switch, a second button switch, a third button switch, a motor, a normally-closed contact switch of a first contactor, a normally-closed contact switch of a second contactor, a normally-open contact switch of the first contactor, a normally-open contact switch of the second contactor, a first switch of the first contactor, a second switch of the first contactor, a third switch of the first contactor, a first switch of the second contactor, a second switch of the second contactor, a third switch of the second contactor and a thermal relay. The first contactor is electrified and closed, and the motor rotates forwards; the first contactor is locked; firstly the motor stops running; then the second contactor is electrified and closed, and the motor rotates reversely; the second contactor is locked. According to the invention, when the motor rotates forwards, the first contactor is locked; when the motor rotates reversely, the second contactor is locked, and therefore the control circuit can work stably.
Control circuit for interlocking of elevator contactors
17.06.2015
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |