B-63322EN/03 NC FUNCTIONS 22.AUTOMATIC OPERATION
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22.7 MANUAL INTERRUPTION
22.7.1 Manual Handle Interrupt
Rotating the manual pulse generator during automatic operation can
increase the distance traveled by the amount corresponding to the
handle feed. The axis to which the handle interrupt is applied is
selected using the manual handle interrupt axis select signal. The
minimum travel distance per graduation is the least command
increment.
The minimum travel distance can be increased by tenfold or by two
scale factors (parameter Nos. 1414 and 1418). Each scale factor can be
selected using the manual handle travel distance select signal.
22.7.2 Simultaneous Automatic and Manual Operation
Simultaneous automatic and manual operation enables manual
operation to be performed during automatic operation. Manual
operation during simultaneous automatic and manual operation is made
possible by manual feed interrupt during automatic operation. Two
types of interrupt operation are available.
i) Cutting axis interrupt type
This type interrupts cutting feed along an axis to enable manual
feed. The manual operations enabled by this type of interrupt
include jog feed, incremental feed, and manual handle feed. For
example, cutting feed along an axis during automatic operation
can be interrupted to allow for manual operation that uses a
different depth of cut. Whether to enable this type of interrupt can
be chosen by setting bit 6 (EMI) of parameter No. 1000.
ii) Setup interrupt type
During automatic operation, this type enables manual operation
along an axis that disables movement (with the parking signal set
to 1). The manual operations enabled by this type of interrupt
include jog feed, incremental feed, and manual handle feed.
Whether to use the cutting axis interrupt type or setup interrupt type
can be chosen on an axis-by-axis basis by using the parking signals
(PK1, PK2, PK3, and so forth) entered from the PMC.