
B-63783EN-1/01 2.PREAPARATIONS FOR OPERATION
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2.5 INTERLOCK
General
This signal disables machine movement along axes. When this signal is
input during movement along axes, the tool movement is decelerated,
then stopped.
Signal
All axes Interlock signal
*IT<G000#0>
[Classification] Input signal
[Function] This signal is used to inhibit the machine from moving, and is effective
regardless of the selected mode.
[Operation] When the *IT signal is set to 0, movement along the axes is decelerated
and stopped, regardless of the mode that is set. During automatic
operation, however, this stop state occurs without changing the
automatic operation mode (with the STL signal set to 1, and the SPL
signal set to 0).
If there are no axis move commands during automatic operation and
blocks containing only an M, S, T, or B command (second auxiliary
function) continue, M, S, T, or B is executed until a block containing an
axis move command appears. When there are both an axis move
command and a block containing M, S, T, or B, only the M, S, T, or B
command is sent. Then the machine stops without automatic operation
being disabled. When the *IT signal is set to 1, operation resumes.
(Fig.2.5 (a), (b))
Command read
Axis move
*IT
Fig. 2.5 (a) Block containing only axis move command
(manual and automatic operation)
Command read
MF/SF/TF/BF
FIN
*IT
Fig. 2.5 (b) Block containing auxiliary functions only
(automatic operation)