Servo system and safety control device
AssigneeOMRON Corporation
InventorsTeruyuki NAKAYAMA, Minoru Hashimoto
Life of this patent
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Abstract
This invention aims to achieve safety without interchanging an entire existing servo system to a servo system having the safety function. In a servo system including a servo motor, and a servo amplifier for controlling the drive of the servo motor based on the output of an encoder attached to the servo motor, a safety control device for monitoring presence of abnormality based on the output of the encoder, and shielding the supply of drive power to the servo motor if abnormality is present is arranged, and the monitoring content is set as setting information.
Claims11
A servo system including a servo motor, and a servo amplifier for controlling drive of the servo motor based on an output of an encoder attached to the servo motor,
- the servo system comprising:
- a safety control device, provided with a branched output of the encoder, for providing to an opening and closing unit arranged on a supply line of a drive power between the servo amplifier and the servo motor a safety output for controlling opening and closing;
- wherein
- the safety control device monitors presence of abnormality based on the output of the encoder, and opens the opening and closing unit to shield the supply of drive power to the servo motor in a case where abnormality is present.
A safety control device, provided with a branched output of an encoder attached to a servo motor, for outputting to an opening and closing unit arranged on a supply line of a drive power between the servo motor and a servo amplifier for controlling drive of the servo motor a safety output for controlling opening and closing;
- wherein
- presence of abnormality is monitored based on the output of the encoder, and the opening and closing unit is opened by the safety output to shield the supply of the drive power to the servo motor in a case where abnormality is present.
Dependencies are inferred from the claim text.