Method and system for controlling the motion of a rotary drive of a rotary index table assembly
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United States of America Patent
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Jun 3, 1997
Grant Date -
N/A
app pub date -
Aug 30, 1995
filing date -
Aug 30, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Method and system are provided for controllably driving a rotary drive of a rotary index table assembly utilizing a PLC which receives various sensor signals including a feedback signal from a resolver to generate a reference central signal which, in turn, is used by a positioning drive including an electric servomotor to drive the rotary drive. The positioning drive includes a servoamplifier and a microprocessor for generating commands for controlling the servoamplifier in response to the reference central signal. The PLC also controls a hydraulic control unit which controls the axial position of the index table relative to a base of the assembly.
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