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1. 发明专利

JPS6383807A COMPENSATING SYSTEM FOR ANGLE OF LEAD IN POSITION CONTROL 失效
公开(公告)号：JPS6383807A
公开(公告)日：1988-04-14
申请号：JP22847386
申请日：1986-09-29
申请人： S G KK
发明人： YUASA YASUHIRO , ITO MINORU
IPC分类号： G05D3/12 , G05B19/19
摘要： PURPOSE:To secure coincidence between an actually positioning point and a target position by using the time data as a compensating parameter for an angle of lead and then utilizing the difference between the position data preceding by the corresponding time and the present position data as the compensation value for the angle of lead. CONSTITUTION:A time data supply means 21 supplies the time data as a compensating parameter for an angle of lead. A control means 22 extracts the position data preceding the time corresponding to the supplied time data out of a storage circuit 11 and then utilizes the difference between said extracted position data and the present position data as the compensation value for the angle of lead in the position control. A correction means 23 detects the error between a target position and an actually stopped position and corrects the time data supplied from the means 21 based on said error. Thus it is not needed to perform a complicated function arithmetic in consideration of a speed, an acceleration, etc., to obtain the compensation value for an angle of lead. Furthermore the positioning accuracy is improved since the time data is corrected in accordance with the past positioning error.

2. 发明专利

JPS6279508A LEAD ANGLE COMPENSATING SYSTEM IN POSITION CONTROL 失效
公开(公告)号：JPS6279508A
公开(公告)日：1987-04-11
申请号：JP22096385
申请日：1985-10-03
申请人： S G KK
发明人： ITO MINORU , TODA JITSUO
IPC分类号： G05D3/12
摘要： PURPOSE:To prevent the occurrence of the time delay by making the difference between the fetched position data and the present position data into the lead angle compensating quantity in the position control. CONSTITUTION:When the time corresponding to the time data set as the lead angle compensating parameter is DELTAt, the fetching means fetches position data X before DELTAt only from the present time point from the memory means. A difference DELTAX between the fetched position data and the present position data is used as the lead angle compensating quantity. For example, to the present position data, DELTAX is added, and the apparently present position data are proceeded only for the lead angle compensating quantity DELTAX. Thus, the lead angle compensated apparent present position data forcast the position of the object after DELTAt time from the present time point, and by adding the difference DELTAX of the position before the DELTAt time to the present position data, the position after the DELTAt time can be forcast. Thus, the lead angle compensation corresponding to various delay conditions of th machine system instantaneously can be executed.

3. 发明专利

JPH0685139B2 失效
公开(公告)号：JPH0685139B2
公开(公告)日：1994-10-26
申请号：JP22096385
申请日：1985-10-03
申请人： S G KK
发明人： ITO MINORU , TODA JITSUO
IPC分类号： G05D3/12

4. 发明专利

JPS6369493A CONTROLLER FOR INDUCTION MOTOR 失效
公开(公告)号：JPS6369493A
公开(公告)日：1988-03-29
申请号：JP21175786
申请日：1986-09-10
申请人： S G KK
发明人： ICHIKAWA WATARU , UEHARA SHINICHIRO , USAMI HIDEYUKI , ITO MINORU
IPC分类号： H02P3/18 , H02P21/04 , H02P21/05 , H02P21/36 , H02P23/03 , H02P23/04 , H02P23/07 , H02P23/20 , H02P23/24 , H02P25/026 , H02P27/02 , H02P27/06
摘要： PURPOSE:To perform a stop positioning control of induction motor without using an electromagnetic brake by generating an address signal with a setting means and also by generating a waveform according to said address signal. CONSTITUTION:A setting means 3 obtains count-up number setting data UC and count-down number setting data DC from a deviation Dt-Dtheta between a stop target position Dt from a stop position setter 6 and a rotational position Dtheta from a rotational position transducer 5. Also, said means obtains frequency setting data UF, DF from a frequency setting ROM 32. An address generator means 2 forms an address signal according to data UC, DC, UF and DF from the setting means 3 to be inputted to an address counter 23. A waveform generator means 1 generates a drive signal waveform for motor 4 according to an address signal from the address counter 23.

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