| 摘要 |
PCT No. PCT/JP96/02338 Sec. 371 Date Apr. 16, 1997 Sec. 102(e) Date Apr. 16, 1997 PCT Filed Aug. 21, 1996 PCT Pub. No. WO97/08593 PCT Pub. Date Mar. 6, 1997A machine-side position detection control unit (20) is provided in order to read a position feedback signal of a position detector (64) associated with a control axis (X axis) requiring machine-side position detection for controlling of a closed loop system. This makes unnecessary for providing a position detection control unit in a servoamplifier (30, 40, 50) for each axis. A numerical control unit (10) and the servoamplifier (30, 40, 50) for each axis are connected in a daisy chain form by a serial communication line.
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