Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1990-09-28
1992-10-20
Pellinen, A. D.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
187130, B66B 106
Patent
active
051572281
ABSTRACT:
Automatic and manual adjustment of a new elevator system installation is accomplished by means of a service tool for interacting with software resident in the elevator system whereby various control parameters such as the feed forward gain of the drive system, the start time delay for delaying initiation of a start torque profile for bypassing the velocity loop during starting, the polarity of the feedback signals, e.g., armature current, velocity, motor field current, and other parameters, may be adjusted automatically, while others, such as the impedance of an elevator brake, may be adjusted by a technician responding to automatic prompts.
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Ackermann Bernd L.
Herkel Peter L.
Horbruegger Herbert K.
Toutaoui Mustapha
Colbert Lawrence E.
Maguire, Jr. Francis J.
Otis Elevator Company
Pellinen A. D.
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