Robot control system for presetting limit values corresponding to limits of deviation
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United States of America Patent
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Sep 17, 1985
Grant Date -
N/A
app pub date -
Dec 28, 1981
filing date -
Dec 30, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a robot control system of the type in which instructive data taught by means of a teaching box is stored in memory and a manipulator such as a robot hand is actuated in accordance with the instructive data so that the robot is made to execute predetermined tasks. The manipulator is so driven by a servo motor as to reduce to zero a deviation between the number of command pulses generated on the basis of the instructive data and the number of feedback pulses generated in accordance with the current position of the manipulator. In accordance with a feature of the invention, the limit values of the deviation are stored in memory in advance and, when the deviation is found to lie outside the range of the limit values during the operation of the robot, such condition is interpreted as an overload and the operation of the robot is halted.
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