Programming Manual

LNC-MILLG27 Return to Origin CheckG27 Return to Origin CheckCommand FormatG27 ;Argument InstructionAction Instruction• AxisSpecify the name of axis being reverted to the origin. It can be anycombination of X, Y, Z, A, B, C or U, V, W. The only condition is that it must beconsistent with the setting of current axis (the fourth axis is set by using theparameter #0122). On the six-axes model M600, parameters #0288 & #0289are used to control the 5 th & 6 th axes.• Target SiteCoordinate of the target point, which can be an absolute value orincrementalal value in accordance with the status of G90 or G91.When the program completes an operation cycle and reaches the finishing pointor goes back to starting point, G27 can be used to execute the check of “Returnto origin” in order to ensure the correctness of current actual location. After theexecution of the specified stroke is completed, G27 command will check thecurrent position and determine whether it reaches the mechanical origin (Firstreference point); if it stops at the origin after execution, the indicator light for originpoint will alight, and next single block will be run; if it does not stop at the origin,the system alarm will be triggered【MOT 4046 “Return to origin” failed】.When the argument X___ is specified, the Return and check could be prosecutedat the X-axis; if not specified, the Return and check should not be prosecuted atthe X-axis, and the truth can be similarly applied to other axes.We suggest that all Tool Compensations should be canceled before executingG27 for the avoidance of misjudgment.22 LNC Technology Co., Ltd.