Elevator control apparatus

Details Elevator control apparatus Elevator control apparatus

1989-01-30

1991-01-15

Pellinen, A. D.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

B66B 132

Patent

active

049846590

ABSTRACT:
An elevator control apparatus includes a brake having a brake coil which is energized in response to a start signal to release the braking force exerted by the brake. A current sensor detects the current flowing through the brake coil and generates an actuating signal when the brake coil current changes due to the brake being released. The actuating signal causes a drive circuit to supply current to a motor for driving an elevator cage. As a result, the elevator cage can be smoothly started.

REFERENCES:
patent: 4368501 (1983-01-01), Gingrich
patent: 4659969 (1987-04-01), Stupak, Jr.
patent: 4706619 (1987-11-01), Buchl
patent: 4729056 (1988-03-01), Edwards et al.
patent: 4764840 (1988-08-01), Petrie et al.

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