| 摘要 |
PURPOSE:To accurately discover the troubles of a control system, by computing responses to shifting commands by using the transfer functions to the responses of the shifting commands that a drive portion has, and by putting out alarm signals by difference between results computed and actual responses. CONSTITUTION:When shifting commands are put off from a shifting command device 1, the shifting commands are transmitted to a motor drive portion while being fed to a simulating transfer function circuit 11 simulating the motor drive portion. A comparator 9 puts out alarm signals 10 when difference between the output of a location register 7 for showing actual locations and the output of a simulating location register 12 for indicating simulating results is not less than an allowable value set to a set instrument 8. |
