Yaskawa YASNAC PC NC I/O Signal Function Manual - Manual (Page 58)

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YASNAC PCNC I/O Signal Function Manual Chapter 6: Operation Support Functions
6.15 Optional Stop Input Signal
The optional stop input signal determines whether or not the M01 command should be exe-
cuted in automatic operation mode (tape, memory, MDI).
• ON: After the execution of the block that includes M01, the PCNC stops with the automatic
operation start (ST) input signal “closed”. This is “opened” when the FIN signal input
is returned. Suspended operation restarts when the ST signal is “open”.
• OFF: The M01 command is ignored.
The OPT input signal is invalid for the block presently executed. If it is given during automatic
operation, it becomes valid from a newly read block.
6.16 Axis Disconnection Designation Input Signals
By using the axis disconnection designation input signals, it is possible todisconnect the
fourth and fifth axes.
For the disconnected axies, an alarm is ignored if it occurs to the disconnected axis; the
result is the sam as in the machine lock state.
IMPORTANT!
1. Axis disconnection operation must be executed only after the servo power is turned OFF.
When the axis disconnection designation input signal (DTCH4, DTCH5) is “closed”
with the servo power ON, the alarm output signal (ALM) is “closed”.
2. When re-installing an axis which has been disconnected, the power must be OFF and
then ON again.
3. When disconnecting an axis, disconnect the cable between the AC SERVOPACK
(lamp) and the AC servomotor.
4. If the servo power is turned ON (after turning the servo power ON with an axis discon-
nected), the alarm output signal (ALM) is “closed”.
5. For disconnected axes, overtravel input signals (*+4 to*+5,*-4 to*-5) are not detected.
6. For disconnected axes, servo power is not turned OFF. Therefore, the servo ON signals
(SVOF4 to SVOF5) are valid for such axes.
Optional Stop Input Signal OPT #30406
Axis Disconnection
Designation Input Signals
DTCH4 to DTCH5 #30833 TO #30834