
B–63683EN/01
5. TOOL FUNCTION (T FUNCTION)
111
In JOG mode, setting signal MNTCHG to 1 enables the tool to be changed
easily in manual mode, as follows:
(1) In JOG mode, set signal MNTCHG to 1.
(2) Signal MNTMOD goes to 1.
(3) If the C–axis is not positioned to the reference position, perform
reference position return for the C–axis.
(4) Signal STAXS goes to 1, thus notifying the PMC that T–axis
movement is possible. Remove the shot pins or other mechanical
clamps.
(5) The PMC sets signal TAXSJ to 1. Change the tool by moving the
T–axis by means of jog feed.
(6) After changing the tool, set signal MNTCHG to 0.
(7) The CNC sets signal STAXS to 0. Replace the shot pins or other
mechanical clamps.
(8) Once the machine has completed tool change operation, set signal
TAXSJ to 0.
(9) If the newly selected tool is an index tool for which C–axis
compensation is set, apply C–axis position compensation
corresponding to the T code.
(10) Set signal MNTMOD to 0. This completes the tool change
sequence.
MNTCHG
MNTMOD
C–axis compensation
C–axis refer-
ence posi-
tion return
Tool change operation
STAXS
T–axis movement
Tool change
TAXSJ
C–axis operation
[Classification] Input signal
[Function] Notifies the CNC that tool change will be performed in JOG mode.
5.8
MANUAL TOOL
CHANGE
Signals
Manual tool change
signal MNTCHG
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