BST Elevator Door Operator Device For Lift Cabin

BST Elevator Door Operator Device For Lift Cabin Product Description Bst Door System, Door System Track, Multi Beam Door Sensor, Sliding Door System for Passenger Elevator Motor: 1. AC induction motor can use vector control and VVVF control. If VVVF control adopted, speed sensor would be not necessary. The method of control is simple, meanwhile, same controller can drive several similar motors. 2. Vector control, AC induction motor only needs speed information, angle information are not necessary. Therefore, encoder only adopts increment. Besides, AC induction motor operates without initial position, during application of door system, not necessary to study pole position and absolute encoder. 3. AC induction motor has no demagnetization problem. AC motor stall torque is rather big, can be applied to more door types. Controller: 1. The method of control is simple, same controller can drive several similar moto…

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