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Wireless system monitors fixture pressure and clamp position in real time

26 September 2011

Enerpac has introduced the Safe Link wireless pressure and clamp position monitoring system for palletized fixtures, monitoring fixture pressure and clamp position in real time, even as parts are being machined. The system can also be used to verify that the operator has properly pressurized the fixture before it is sent inside the machining centre. If fixture pressure or clamp position is lost, Safe Link prompts the machine control to interrupt machining before expensive damage occurs.

A Safe link send unit mounted on the fixture uses a 2.4 GHz radio to communicate with a receiver unit that interfaces with the machine control. Fixture pressure or clamp position is continually monitored, a pressure switch for pressure monitoring or a limit switch for position sensing being typically used with the send unit. The receiver unit communicates with the machine control via a standard 24Vdc output or Modbus RTU RS-485 communication protocol. An Ethernet TCP/IP communication option is also available.

There is no limit to the number of systems used in a production area, accommodating large and diverse applications. Frequency hopping technology is used for signal stability even in busy production environments

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