
B-63324EN-1/03 OPERATION 6.SAFETY FUNCTIONS
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6.3 STROKE CHECK
Two areas which the tool cannot enter can be specified with stored
stroke check 1 and stored stroke check 2.
Fig.6.3 (a) Stroke check
When the tool exceeds a stored stroke limit, an alarm is displayed and
the tool is decelerated and stopped.
When the tool enters a forbidden area and an alarm is generated, the
tool can be moved in the reverse direction from which the tool came.
Explanation
- Stored stroke check 1
Parameters (Nos. 5220, 5221 or Nos. 5260, 5261) set boundary.
Outside the area of the set limits is a forbidden area. The machine tool
builder usually sets this area as the maximum stroke.
- Stored stroke check 2 (G22, G23)
Parameters (Nos. 5222, 5223) or commands set these boundaries.
Inside or outside the area of the limit can be set as the forbidden area.
Parameter OUT (No. 5200#0) selects either inside or outside as the
forbidden area.
In case of program command a G22 command forbids the tool to enter
the forbidden area, and a G23 command permits the tool to enter the
forbidden area. Each of G22; and G23; should be commanded
independently of another commands in a block.
The command below creates or changes the forbidden area:
(I,J,K)
(X,Y,Z)
(I,J,K)
(X,Y,Z)
: Forbidden area for the tool
Forbidden area is inside.
Forbidden area is outside