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SAFETY PRECAUTIONS
s–6
WARNING
5.
Constant surface speed control
When an axis subject to constant surface speed control
approaches the origin of the workpiece coordinate
system, the spindle speed may become excessively
high. Therefore, it is necessary to specify a maximum
allowable speed. Specifying the maximum allowable
speed incorrectly may damage the tool, the machine
itself, the workpiece, or cause injury to the user.
6.
Stroke check
After switching on the power, perform a manual reference
position return as required. Stroke check is not possible
before manual reference position return is performed.
Note that when stroke check is disabled, an alarm is not
issued even if a stroke limit is exceeded, possibly
damaging the tool, the machine itself, the workpiece, or
causing injury to the user.
7.
Tool post interference check
A tool post interference check is performed based on the
tool data specified during automatic operation. If the tool
specification does not match the tool actually being used,
the interference check cannot be made correctly,
possibly damaging the tool or the machine itself, or
causing injury to the user.
After switching on the power, or after selecting a tool post
manually, always start automatic operation and specify
the tool number of the tool to be used.
8.
Absolute/incremental mode
If a program created with absolute values is run in
incremental mode, or vice versa, the machine may
behave unexpectedly.
9.
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.
10.
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.
11.
Programmable mirror image
Note that programmed operations vary considerably
when a programmable mirror image is enabled.