THE FOLLOWING IS THE PROCEDURE FOR SETTING REFERENCE POSITION (FOR MACHINES WITH ABSOLUTE ENCODER) IN CASE THE REFERENCE POSITION IS DISTURBED BY ANY REASON :
SET PARAMETER 1815 # 4 (APZ) FOR THE CORRESPONDING AXIS (X OR Z) = 0
SWITCH THE POWER OFF AND THEN ON AFTER A FEW SECONDS.
MESSAGE “---- (X OR Z)-AXIS NEED ZRN” WILL APPEAR ON CRT (NC ALARM).
MOVE THE AXIS TO THE REFERENCE POSITION BY MANUAL JOGGING
(NORMALLY 10 MM AWAY FROM THE EMERGENCY POSITION).
SET PARAMETER 1815 # 4 (APZ) FOR THE CORRESPONDING AXIS (X OR Z) = 1
SWITCH THE POWER OFF AND THEN ON AFTER A FEW SECONDS.
NOW THIS POSITION WILL BECOME THE MACHINE REFERENCE VALUE FOR THIS AXIS. IT WILL, HOWEVER, BE DIFFERENT FROM THE PREVIOUS REFERENCE VALUE. AS A RESULT, ALL THE PREVIOUS TOOL OFFSET SETTINGS WILL BECOME INCORRECT AND WILL HAVE TO BE DONE AGAIN.