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How to set reference position in cnc machine.





Dear friends !


                         Many times we have faced the issue in our cnc machines that forget home position and given alarm which you see in the below picture DS0506 X - OVER TRAVEL (HARD) and  DS0300 (X ) APC ALARM : NEED RETURN.
This alarm show on alarm window.
When this type alarm shown on your machine screen than check these things first.
⧭ Check your encoder cable its connected .
⧭Check your encoder cable connector and wire in healthy condition.
⧭Check your Fanuc drive battery voltage (6 volt).
⧭ Check your Fanuc encoder pin in ok condition.

If you found  any abnormality than please correct first than go to jog mode than select the X axis and match the X axis arrow (Machine manufacturer gives the arrow mark for machine reference point.)After reach the reference point do machine in MDI mode than machine parameter write enable ON check the below picture .

Parameter write enable screen.       

After ON the write enable parameter go to parameter window see the picture .

      Parameter screen.
After reach the parameter window search the parameter 1815 in search bar see in picture.

     Parameter search screen.

Go to the parameter screen 1815 see the below picture.

   Parameter 1815 screen.

                                                        
Than shift the cursor on APZ on X axis where you see 0 in place of 1 kindly put the 1 in place of 0 . See the below picture.
   APZ value 1 in place of 0.
Now machine given alarm please off the machine see the below picture.Now power off button press after power off again ON the power of machine by pressed the power on button.

       Power must be off screen.
After power ON disable the parameter write enable , see the below picture.


Parameter disable screen.

Now we have completed the reference of X axis and you also see no machine alarm on screen.



Thanks for watching.


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