
8. SAFETY ZONE CHECK
B–63683EN/01
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Tool area in which an actual safety zone
check is made
Virtual tool area
Workpiece holder
Output when the virtual tool area over-
laps a workpiece holder area
Signals SZT1 to SZT12 correspond to tool areas 1 to 12, respectively.
[Classification] Output signal
[Function] When the type B safety zone check is used, this signal notifies the PMC
that the tool has entered a punch forbidden area.
[Output condition] See “8.2 Type B”.
[Classification] Input signal
[Function] When the type B safety zone check is used, this signal instructs the CNC
to perform punching, even if the tool has entered a punch forbidden area,
and the WDD0 signal is set to 1.
[Operation] See “8.2 Type B”.
[Classification] Input signal
[Function] This signal notifies the CNC that the workpiece holder position has been
detected with the automatic safety zone setting function.
[Operation] See “8.5 Automatic safety–zone setting”.
[Classification] Input signal
[Function] This signal notifies the CNC that automatic safety zone setting, based on
an external signal, has been performed.
[Operation] Refer to 8.5.2 “Detecting workpiece holder position using an external
signal”.
Punch forbidden
area–entered signal
WDD0 <F231#7>
Punch enable signal
WDC <G232#4>
Workpiece holder
detection command
SAFZ <X1004#1>
Automatic safety zone
setting request signal
SAFRQ <G232#5>