Plugging and plugging override control apparatus
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United States of America Patent
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-
Jul 16, 1985
Grant Date -
N/A
app pub date -
Jan 5, 1983
filing date -
Jan 5, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A control system (28) is provided for controlling the supply of power to a motor (12) having an armature (34) and a plugging diode (38) connected across the armature (34), including a circuit (14) for producing direction command signals, a circuit (98) for generating digital motor power command signals, a circuit (16) for sensing a plugging condition and generating a plug signal, a microprocessor (46) for generating one of a plurality of pulse trains during typical plugging conditions and for automatically overriding the generation of the one pulse train and generating other of the plurality of pulse trains during special plugging conditions. By automatically providing the override feature during the special plugging conditions, the disadvantage of manual override in prior control systems is obviated.
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