EXAMPLE 4 - DISTANCE MEASUREMENT
This mode of operation may be used for equipment position monitoring up to 60 m ( 200 ft ).
Operation is similar to Space Measurement operation except that measurements are referenced to the
transducer face.
For this example we’ll assume the following:
» Transducer 10 ( an XLS-60 ) is mounted horizontally
*
facing the Tripper Car.
» when the Tripper Car is at the far end stop, the transducer face to Tripper Car distance is 175 ft.
» when the Tripper Car is at the near end stop, the transducer face to Tripper Car distance is 5 ft.
» the Tripper Car travels at 7 ft/min, and is normally maintained 14 ft from either end stop.
» a mA output proportional to Tripper Car distance from the transducer is required for PLC operation.
» if the PLC reads 3.8 mA, the Tripper Car is to immediately stop.
» an AO-10 is connected to the XPL+ Peripheral Communications terminals.
*
When an XLS or XLT series transducer is mounted horizontally, install a support
plate under the transducer to prevent possible mounting/conduit connection damage.
175 ft.
5 ft
support
plate
to XPL+
XLS-60
transducer
TECHNICAL REFERENCE
PL-532 93
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