Patent ID: 8839942
Filing Date: 2014-09-23
Classification: B65G,B66B

Abstract:
1. A method for monitoring the functioning of a drive element provided between a drive motor and a belt for pallets or steps of a passenger transport installation, comprising: monitoring a condition of the steps or pallets of the step or pallet belt by a missing step or missing pallet monitoring device provided in the area of the step or pallet belt, wherein a distance between individual steps or pallets is measured by determining a pulse sequence of the steps or pallets; measuring a frequency of the drive motor; comparing the measured pulse sequence of the steps or pallets and the measured frequency of the drive motor with a predetermined frequency range; and in the event that the measured values deviate outside of the predetermined frequency range indicating a malfunction of the drive element, stopping the step or pallet belt by a brake provided in the area of the step or pallet belt.