Symptoms, Probable Causes And Solutions; No Image Is Visible On The Lcd Screen; Values Displayed On The Lcd Screen Are Incorrect - HEIDENHAIN ND 1300 Operating Instructions Manual

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Symptoms, probable causes and solutions

Some common symptoms of problems are listed in the following pages with probable causes and possible
solutions.

No image is visible on the LCD screen

Probable cause 1:
Possible solutions:
1 Activate the main power source.
2 Connect the power cord or turn the power ON.
3 Replace the fuse.
Probable cause 2:
Possible solution:
1 Press the LCD ON/OFF button to toggle the LCD ON.
Probable cause 3:
Possible solution:
1 Readjust the backlighting using the decimal point or +/- key.
2 Adjust the brightness level in the Miscellaneous setup screen.

Values displayed on the LCD screen are incorrect

Probable cause 1:
Possible solutions:
1 Connect the axis encoder cable firmly to the QC-300.
2 Replace the axis encoder.
Probable cause 2:
Possible solution:
1 Specify the correct resolution in the Encoders setup screen.
Probable cause 3:
Possible solution:
1 Specify the correct count polarity in the Encoders setup screen.
QC-300 Series User's Guide
Power is not applied to the QC-300
LCD ON/OFF toggle switch is in the OFF mode
LCD contrast or backlighting is out of adjustment
The axis encoder is not connected or is
malfunctioning
The Encoders setup screen specifies the
wrong axis encoder resolution
The wrong axis encoder count polarity is
specified in the Encoders setup screen