
B–63294EN/02
2. MACHINING MENU DESCRIPTIONS
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Unit of setting : 1/1000 mm
1/10000 inch
I : APPROACH POINT DISTANCE
J : APPROACH POINT DISTANCE
Distance from the approach point to the machining start point. The approach point is determined from
the approach radius and this data. With both distances, the tool approaches with an undefined quarter
arc. If both are specified, approach point distance (I) takes precedence. If, however, approach point
distance I is equal to 0 and approach point distance J is equal to 10, approach point distance J takes
precedence.
Both of these prompts are displayed for CIRCUMSCRIBED CIRCLE CLOCKWISE and CIR-
CUMSCRIBED CIRCLE COUNTERCLOCKWISE. For TANGENT, only APPROACH POINT DIS-
TANCE I is displayed. For VERTICAL, only APPROACH POINT DISTANCE J is displayed.
The initial values can be set for parameters Nos. 9426 and 9428.
9426 Initial value of approach point distance I
9428 Initial value of approach point distance J
Unit of setting : 1/1000 mm
1/10000 inch
NOTE Before moving from the current point to the approach point, the tool moves to the auxiliary ap-
proach point. Then, the tool moves to the approach point. The reason for this is to ensure that
cutter compensation (G41/G42) starts up successfully.
The distance from the auxiliary approach point to the approach point must be set for parameter
No. 9434 beforehand. The distance is not output if APPROACH TYPE is VERTICAL.
9434 Distance from the approach point to the auxiliary approach point
Unit of setting : 1/1000 mm
1/10000 inch
If this parameter is set to ”500” or less, ”500” is assumed.