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Logic control with test mode for fast-acting safety system

  • US 7,197,969 B2
  • Filed: 09/13/2002
  • Issued: 04/03/2007
  • Est. Priority Date: 09/24/2001
  • Status: Expired due to Term
First Claim
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1. A machine having an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and where the machine comprises:

  • a detection system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool;

    a reaction system adapted to mitigate the unsafe condition; and

    a control system adapted to monitor the detection system and control actuation of the reaction system, where the control system includes a test mode feature configured to allow a user to test whether a particular material would be perceved by the detection system as a person in an unsafe condition, and where the test mode feature indicates whether the particular material would be perceived by the detection system as a person in an unsafe condition by triggering some action other than actuation of the reaction system.

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