DOOR CONTROLLER FOR ELEVATOR

摘要

PROBLEM TO BE SOLVED: To suppress a shock by collision between respective doors when the doors are fully closed, and to certainly operate a door lock mechanism of the landing doors.SOLUTION: An elevator includes: a motor 7 driving car doors; landing doors operating in linkage with the car doors; a door closer always applying force in door closing directions to the landing doors; and a power supply 1 supplied to the motor. A door controller for the elevator is provided with electromagnetic contactors 2, 3 detecting loss presence/absence of power, is provided with short circuits to respective supply paths of the power to the motor 7 through contacts 2a, 2b, 3a, 3b of the electromagnetic contactors 2, 3, short-circuits the short circuits by the contacts when having detected loss of the power by the electromagnetic contactors to generate power generation braking force to the motor 7, opens the short circuits by the contacts 3a, 3b of the electromagnetic contactor 3 before the car doors are closed after a prescribed time lapses of the power loss to do away with the power generation braking force, and closes the landing doors by self-closing force of the door closer.