
B–64113EN–1/01
2. PREPARATIONS FOR OPERATION
142
The stored stroke check 2 values are set either by parameters (Nos. 1322,
1323) or by command. The foribidden area may be defined as the area
external to the limits, or internal to the limits. This is determinal by the
value in parameter OUT (No. 1300#0). A G22 command forbids the tool
to enter the forbidden area, and a G23 command permits the tool to enter
the forbidden area. G22 and G23 should be commanded independently of
any other commands in a block.
Setting both the BFA (bit 7 of No. 1300) and OTF (bit 5 of No. 1301) pa-
rameters to 1 can issue an alarm just before the forbidden area is entered
(M series only).
The command below creates or changes the forbidden area:
G 22X_Z_I_K_;
A(X,Z)
X>I,Z>K
X–I>ζ
Z–K>ζ
B(I,K)
ζ is the distance the tool travels in 8 ms. It is 2000 in least
command increments when the feedrate is 15 m/min.
Fig. 2.3.3 (c) Creating or changing the forbidden area using a program
(T series)
(I,J,K)
(X,Y,Z)
X>I,Y>J,Z>K
X–I> ζ (In least command increment)
Y–J> ζ (In least command increment)
Z–K> ζ ((In least command increment)
G 22X_Y_Z_I_J_K_;
ζ is the distance the tool travels in 8 ms. It is 2000 in least
command increments when the feedrate is 15 m/min.
Fig. 2.3.3 (d) Creating or changing the forbidden area using a program
(M series)
B(X
2,
Z
2
)
X
1
>X
2
,Z
1
>Z
2
X
1
–X
2
> ζ
Z
1
–Z
2
> ζ
A(X
1,
Z
1
)
ζ is the distance the tool travels in 8 ms. It is 2000 in least
command increments when the feedrate is 15 m/min.
Fig. 2.3.3 (e) Creating or changing the forbidden area using a parameters
(T series)
Stored stroke check 2