Patent ID: 8469175

Claim:
A method for controlling an installation for a revolving long passenger transport, including an escalator or moving walkway comprised of a steps or pallets moving along a transport path, which includes a plurality of drives, with at least one drive being arranged in a reversing area and at least one further drive being arranged in an area of the transport path, the method comprising: actively connecting each drive to a frequency converter; monitoring all frequency converters by a higher-order control connected to the frequency converters; determining the position of the drives with respect to each other by at least one reference run of the installation for generating a drive pattern; memorizing the generated drive pattern in the higher-order control; transmitting measured speed values of the drives to the higher-order control by the individual frequency converters; comparing the measured speed values in the higher-order control with respect to each other; and in case of divergences from the memorized drive pattern of the respective frequency converter, correcting with the higher-order control, the respective frequency converter which diverges from a comparative value.