
B–62073E–1/04 2. INTERFACE BETWEEN CNC AND PMC–NA OR NB
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3 The following time chart shows the operation for block M∆∆ ; which switches simultaneous automatic and
manual operation to automatic operation:
Next block
M command M∆∆ ;
Code signal M0-M31
Strobe signal MF
Automatic/manual simultaneous
operation selection signal MOVL
Signal for selecting manual mode H/J/S
End signal
Set signal MOVL low for selecting simultaneous automatic and manual operation after setting a signal low
for selecting a manual mode, or turn them low at the same time.
Assume that a switch named “Manual handle interrupt” is prepared on the machine operator’s panel to
enable the operator to interrupt the cutting axis by manual handle feed to change the cutting depth. If the
sequence is set as shown in the following time chart, operation immediately changes from automatic op-
eration to simultaneous automatic and manual operation and it is possible to interrupt the cutting axis by
manual operation.
Tape ending
Memory operation
Tape operation
MDI
Incremental feed
Manual reference
point return
Manual handle feed
ON
OFF
Memory command selection
signal MEM
Z-axis manual handle interrupt switch
Z-axis parking signal PK3
Automatic/manual simultaneous
operation selection signal MOVL
Manual handle feed selection signal H
Z axis manual handle interrupt
Selecting the interrupt type
The interrupt type is switched between cutting axis interrupt and setup interrupt according to the states of park-
ing signals (PK1, PK2, PK3, ...) when the simultaneous automatic and manual mode is selected. The following