Patent ID: 7783369

Claim:
A remote maintenance system comprising: a maintenance server, a linear motion apparatus that is driven by a motor; a motor control apparatus for controlling the motor of the linear motion apparatus; and an information processing apparatus that is connected to the motor control apparatus and communicates with the maintenance server through an electric communication line, wherein the motor control apparatus includes storage means for storing a parameter relating to motor control, and the information processing apparatus includes: acquiring means for acquiring the parameter from the motor control apparatus; sending means for sending the acquired parameter to the maintenance server; receiving means for receiving a parameter adjusted by the maintenance server from the maintenance server; and writing means for writing the received parameter into the storage means of the motor control apparatus, and the maintenance server receives the parameter sent by the information processing apparatus, prompts an operator to adjust the received parameter while displaying the received parameter and sends the adjusted parameter to the information processing apparatus, and wherein the information processing apparatus, when receiving the parameter adjusted by the maintenance server, writes the received parameter into the storage means of the motor apparatus automatically without human interaction, wherein said parameters relating to motor control include at least one of a positive loop time constant, a speed loop time constant and an acceleration loop gain; and wherein the motor control apparatus further includes: detecting means for detecting a value of current or voltage supplied to the motor of the linear motion apparatus, the information processing apparatus is configured such that the acquiring means acquires a parameter and a current waveform or a voltage waveform which is detected when the motor is controlled based on the parameter, from the motor control apparatus, and that the sending means sends the current waveform or the voltage waveform and the parameter to the maintenance server, and the maintenance server receives the current waveform or the voltage waveform and the parameter from the information processing apparatus, and prompts the operator to adjust the received parameter while displaying the current waveform or the voltage waveform and the parameter.