HEIDENHAIN ND 1300 VED and Crosshair Systems - Manual (Page 313)

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Problem Solving
Probable cause 4: The wrong encoder is connected to the axis
Possible solutions:
1 Connect the axis encoder specified in the Encoders setup screen.
2 Confirm that the each encoder is connected to the correct axis input.
Probable cause 5: The wrong in/mm unit of measure is specified
Possible solution:
1 Specify the correct units of measure in the Encoders setup screen.
Probable cause 6: The wrong encoder reference mark is specified
Possible solution:
1 Correct the reference mark type in the Encoders setup screen.
Probable cause 7: Error correction is required to compensate
encoder inaccuracies:
Possible solutions:
1 Perform LEC, SLEC or optional NLEC error correction in the corresponding error screen.
2 Error correction was performed but not enabled. Enable error correction in the
LEC, SLEC or optional NLEC setup screen.
Probable cause 8: Video resolution is not calibrated:
Possible solutions:
1 Calibrate the video pixel resolution in the VED setup screen.
Probable cause 9: The wrong video camera is specified:
Possible solutions:
1 Specify the correct camera in the VED setup screen.
Symptoms, probable causes & solutions