| 摘要 |
PURPOSE:To correctly control a speed to be adjusted, by constituting a device such that the speed is controlled to the final speed by outputting a speed change in plural times while performing a correction to be added after the first speed change instruction is generated, in case of the captioned device which controls an electric motor by a microcomputer. CONSTITUTION:If flat glass 10 arrives at a point A, an instruction signal forming means 31 outputs a deceleration start instruction cc1 by actuating a position detector 30, while a change speed arithmetic means 33 reads a conveying speed Va at the point A calculating a speed Vs to be decelerated in one time by a request speed Vb in a target point B and a preset number of deceleration stages. And an instruction signal forming means 32 feeds a deceleration instruction cc2. A generation interval of the both instruction signals cc1, cc2 is supervised in a predetermined interval, and a speed correcting means 35 determines a correction value correcting the speed in any of the speed changes in N times. By this constitution, the speed is correctly controlled to a target speed.
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