发明授权
- 专利标题: Servo-control apparatus
- 专利标题(中): 伺服控制装置
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申请号: US490564申请日: 1990-05-21
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公开(公告)号: US5015935A公开(公告)日: 1991-05-14
- 发明人: Yasusuke Iwashita
- 申请人: Yasusuke Iwashita
- 申请人地址: JPX Minamitsuru
- 专利权人: Fanuc Ltd.
- 当前专利权人: Fanuc Ltd.
- 当前专利权人地址: JPX Minamitsuru
- 优先权: JPX63-243990 19880930
- 主分类号: G05D3/00
- IPC分类号: G05D3/00 ; G05B19/404 ; G05D3/12
摘要:
A servo-control apparatus generates a velocity command by applying backlash correction data to position error data when direction of rotation of a servomotor is reversed, and performs a backlash correction by adding an amount of backlash acceleration to the velocity command. In order to terminate backlash acceleration at an appropriate time, velocity feedback pulses are accumulated by a counter from the moment acceleration control starts, and the accumulated value of velocity feedback is monitored by an acceleration-stop instructing unit. When the accumulated value attains a predetermined value, an acceleration output unit is caused to halt the output of the amount of backlash acceleration to complete control of backlash acceleration.
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