Adjusting technique for a digital elevator drive system.

摘要

A control parameter for controlling an elevator system is adjusted by providing a signal for causing an elevator system response and comparing the magnitude of a sensed signal indicative of that response to a stored reference signal magnitude and adjusting the control parameter in proportion to the difference therebetween. Adjustment may be accomplished automatically or by interacting with a serviceman having a service tool capable of communicating with the elevator control system.