Operator motor control

Details Operator motor control Operator motor control

H - Electricity

02

P

318/53

H02P 1/42 (2006.01) E05F 15/16 (2006.01) E05F 15/20 (2006.01)

Patent

CA 1113150

ABSTRACT OF THE DISCLOSURE A control system for a power driven operator for gar- age doors and the like comprising an operator control circuit having a DC voltage source operating as the power supply for an electronic flip-flop device responsive to successively applied input signals to alternatively establish circuits of opposite direction through a reversible electric motor; i.e. one actuation causes the motor to run in one direction and the next actuation causes it to run in the opposite direction. The operator is sub- ject to actuation by both a hard wired push button or an auxiliary device such as a radio receiver which is responsive to signals from a remote transmitter. The operator control circuit includes a feature which electronically prevents the simultaneous ener- gization of the reversible electric motor in both directions. A further feature is a provision for de-energizing the operator motor control circuit relays after a period during which no actu- ation occurs, or after an interruption of the line voltage, the interruption being caused by a thermal switch or by external means. Still another feature is a provision to energize external devices such as garage lights for a period following actuation of the motor control.

310591

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