
B–63124EN/01
SAFETY PRECAUTIONS
s–6
WARNING
5.
Special M codes
In principle, a block which includes any of the following M codes, which specify the execution
of special functions, must not contain any other codes. When it is impossible to avoid specifying
an M code together with another code in the same block, refer to the relevant description in the
manual supplied by the machine–tool builder. Failure to follow the specified procedure may
result in damage to the machine or injury to the user.
S Forming mode/forming mode cancel
S Workpiece clamp/unclamp
S Nibbling mode/nibbling mode cancel
S Switching between punch mode and laser mode
6.
Absolute/incremental mode
If a program created with absolute values is run in incremental mode, or vice versa, the machine
may behave unexpectedly.
7.
Plane selection
If an incorrect plane is specified for circular interpolation, helical interpolation, or a canned cycle,
the machine may behave unexpectedly. Refer to the descriptions of the respective functions for
details.
8.
Torque limit skip
Before attempting a torque limit skip, apply the torque limit. If a torque limit skip is specified
without the torque limit actually being applied, a move command will be executed without
performing a skip.
9.
Programmable mirror image
Note that programmed operations vary considerably when a programmable mirror image is
enabled.
10.
Compensation function
If a command based on the machine coordinate system or a reference position return command
is issued in compensation function mode, compensation is temporarily canceled, resulting in the
unexpected behavior of the machine.
Before issuing any of the above commands, therefore, always cancel compensation function
mode.
11.
Auto–repositioning
If the amount of retraction or return for auto–repositioning is changed, and repositioning is
repeated many times, grasping of the workpiece may fail, possibly causing damage to the
machine. Be careful therefore, when changing the amount of retraction or return.
12.
C–axis control
Before attempting to specify C–axis control, select a tool which supports the use of C–axis
control. If C–axis control is applied while an incompatible tool is selected, C–axis rotation may
cause damage to the metal die, magazine, and/or hitter.