Yaskawa Yasnac PC NC - Manual (Page 48)

YASNAC PC NC Operating Manual Chapter 2: PC NC System Outline
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2.7.8 5th-axis Command Neglect
When the 5TH-AXIS COMMAND NEGLECT switch is ON, the program is executed with the
machine lock function applied only to the 5th-axis. Although the 5th-axis does not move, posi-
tion data of the 5th-axis are updated as the program is executed.
The switch can be operated only while the operation is stopped in the block stop or feed hold
state.
2.8 Operation Intervention During Automatic Operation
This section describes the procedure used for manual and MDI operation intervention during
automatic operation.
Manual Operation Intervention during Automatic Operation
To carry out a manual operation during automatic operation, follow the steps indicated below.
Interrupt the operation by using the FEED HOLD or SINGLE-BLOCK switch on the machine
operation panel.
Select the manual mode (RAPID, JOG, STEP or HANDLE) with the MODE SELECT switch
on the machine operation panel.
Return the axes to the position where manual operation (see 2.3 “MANUAL OPERATION
(1)”.) has been started (the position recorded in step ).
Return the MODE SELECT switch to the operation mode (MEM or MDI) position selected
before manual operation intervention.
Press the CYCLE START switch on the machine operation panel to restart the interrupted
automatic operation.
CAUTION!
• Do not restart automatic operation after stopping automatic operation and then performing “tool
selection” in manual operation or “1 line MDI” operation.
The reason for this is that the “tool selection” operation may cause the coordinate system to be changed, leading
to unexpected operation if automatic operation were restarted. This could cause tool damage due to interference
and accidents causing personal injury.
Reset the NC after any manual intervention.
• After stopping automatic operation and performing a manual intervention, do not restart automatic
operation without resetting first.
If automatic operation is started with the “mirror image” or “manual absolute” function in effect, unexpected opera-
tion maybe performed. This could cause tool damage due to interference, and accidents causing personal injury.
Reset the NC after any manual intervention.