OPERATION6. SAFETY FUNCTIONS
By setting bit 0 (SF0) of parameter No. 16500, the type B safety zone
check can be selected. With type B, no alarm is issued even if a tool enters
a safety zone; after confirming the safety of the situation, the operator can
perform a punch operation, or can position the tool to the next punching
position without performing punching.
With type B, all safety zones are handled as punch forbidden areas.
If the tool enters a safety zone, the punch–forbidden area–entered signal
WDD0 (F231#7), used to provide notification that the tool has entered a
punch forbidden area, is set to 1 in the punch block. When punching is
to be performed in a punch–forbidden area, punch–enable signal WDC
(G232#4) is set to 1 after the operator confirms that punching can be
performed safely. After detecting the WDC signal, the CNC sets the PF
signal to 1.
When punching is not to be performed in a punch forbidden area, the press
activation lock signal PFL (G230#0) is set to 1. Upon detecting the PFL
signal, the CNC moves on to execute the next block.
Press activation lock signal (PFL) = 1 ?
Punch forbidden area–entered signal
(WDD0) = 1?
Punch enable signal (WDC) = 1?
Press activation wait signal (PFW) = 1 ?
Press activation signal (PF) =1
1 If the tool enters a punch forbidden area during nibbling, the
WDD0 signal is set to 1 one punching position before the
tool enters punch forbidden area.
2 With type B, the setting of SZ1 to SZ4 (bits 0 to 3 of
parameter No. 16501) is ignored.
Punch Forbidden Area
Punch forbidden area