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Troubleshooting the DCF by symptom
DCF does not respond or function
• Make sure that the cordset is securely attached to the interface assembly on the Z-axis.
• Check cordset connections: make sure knurled locking ring is correctly tightened. You must
engage several threads on each connector or the sensor will not power up.
• Check the interface assembly enclosure. There should be two steady green lights. If there is a
red light, or if one of the green lights is flickering, the DCF is not installed correctly.
• If you recently replaced parts (brush foot, carbide insert, blast ring), make sure that they were
installed correctly. Components that were not assembled correctly after replacement could lead
to excess vibration or actual contact with material surface. Install the parts correctly, and then
calibrate the DCF before you return to service.
• Abrasive spray could have worn the bellows to the point where moisture is getting inside the
PCB and causing damage. Replace the foot assembly.
• The cable could have failed due to abrasive wear or physical contact. Replace the cable.
DCF does not accurately sense standoff
This indicates the device is not calibrated correctly. Calibrate the DCF, making sure to follow all
steps in the instructions. If this does not solve the problem, check the temperature of the
operating environment. If the temperature is outside the recommended range, this could lead to
accuracy problems, damage to the PCB, and loss of function.
Erratic readings, false collision signals, or accuracy issues
If the device is near an external magnetic interference source, this will cause a wide range of
problems. Look for a source of magnetic interference, and remove or shield the device from it.
© 2021 Flow International Corp.
Retrieved from Flow KB on April 14, 2021 PST
Ancillary option: Dynamic Contour Follower
Summary of Contents for MACH 300
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