IAI America XSEL-QX - Manual (Page 371)

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Part 4 Commands
As for simple interference check zone No. 1, entry into this rectangular solid area will not be
detected if Rb is outside the range of 0 to 180
q. To enable detection regardless of the R-axis
coordinate, do not enter anything in coordinates 1 and 2 in the R column for zone 1.
If either the maximum value or minimum value needs not be limited, as in the case of simple
interference check zone No. 2 or 3, enter a value outside the operation area (1000 in zone 2, 1000
or -1000 in zone 3).
The maximum/minimum value may be set in either coordinate 1 or 2.
Entry into simple interference check zone No. 1, 2 or 3 will turn ON output port No. 311, 312 or 313,
respectively.
Duplicate specifications of physical output numbers or global flag numbers will cause chattering and
the result will become indeterminable. Do not set duplicate numbers.
Use of simple interference check zones will reduce the CPU performance significantly. When simple
interference check zones are not used, set “0” in "physical output port number/global flag number"
and "error type" to disable the function.
* Use a DFIF command to set a simple interference check zone in a SEL program.
(3) Notes on operation when a tool coordinate system is selected
When a tool coordinate system is selected, entry of the tool tip into the simple interference check
zone, not entry of the center of the mounting surface, will be detected.
Depending on the movement locus, a part other than the tool tip may enter the simple interference
check zone, as shown below. In this case, however, detection will not occur until the tool tip enters
the simple interference check zone. Exercise due caution.
Simple interference check zone
Tool tip
Tool tip
Simple interference check zone