Control apparatus for passenger conveyor

Conveyors: power-driven – Conveyor or accessory therefor specialized to convey people – With means to control the operation of the section

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Details

198323, 198856, B66B 900, B65G 1700

Patent

active

044999860

ABSTRACT:
A control apparatus for a passenger conveyor driven by a three-phase induction motor which is capable of being put selectively into a star-connection or a delta-connection mode. A load of the conveyor is detected on the basis of a current and a voltage supplied to the induction motor, so that when the load is large the motor is driven in the delta-connection mode while when the load is small the motor is driven in the star-connection mode so as to save the power consumption of the conveyor when the load is small.

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