Data input and output device for a drive regulation apparatus op

Details Data input and output device for a drive regulation apparatus op Data input and output device for a drive regulation apparatus op

1983-12-14

1986-07-01

Smith, Jerry

Boots, shoes, and leggings

318341, 318345R, 187 29R, 364130, H02P 700, B66B 128

Patent

active

045983542

ABSTRACT:
The data input/output device of an elevator drive regulation receives actual values of the speed and of the displacement of an elevator cabin at related counters which are connected to related digital tachometers. The data are evaluated and transmitted via an interface to a digital computer of the drive regulation. The digital computer compares the data with stored reference values and computes input values for related adjusting members of the drive regulation. The computed input values are transmitted via the interface to and stored in a programmable multiple counter of the data input/output device. The programmable multiple counter contains three counters each of which is connected through a driver stage with a thyristor associated with one phase of a three-phase a.c.-elevator drive. A synchronizing device ensures that all thyristors are always ignited at any one time at the same phase angle which corresponds to the adjusting magnitude. A further counter of the programmable multiple counter is connected to a driver stage which acts upon the control of an eddy-current brake in the drive regulation.

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patent: 4493398 (1985-01-01), Kindler
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Electronic Industries, vol. 24, No. 6, Jun. 1965, p. 152, Radnor, USA, "Circuit Features Zero-Level Clipping".

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