
SAFETY PRECAUTIONS B-63164EN/04
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GENERAL WARNINGS AND CAUTIONS
The following warnings and cautions describe the safety precautions
related to the use of CNC units. It is essential that these precautions
be observed by users to ensure the safe operation of machines
equipped with a CNC unit.
WARNING
1 Before operating the machine, thoroughly check the entered
data. Operating the machine with incorrectly specified data
may result in the machine behaving unexpectedly, possibly
causing damage to the workpiece and/or machine itself, or
injury to the user.
2 Never attempt to machine a workpiece without first checking
the programmed value, compensation value, current position,
and external signal settings. Also, never attempt to machine a
workpiece without first checking the operation of the machine.
Before starting a production run, ensure that the machine is
operating correctly by performing a trial run using, for
example, the single block, feedrate override, or machine lock
function, or by operating the machine with neither a tool nor
workpiece mounted. Failure to confirm the correct operation of
the machine may result in the machine behaving
unexpectedly, possibly causing damage to the workpiece
and/or machine itself, or injury to the user.
3 Ensure that the specified feedrate is appropriate for the
intended operation. Generally, for each machine, there is a
maximum allowable feedrate. The appropriate feedrate varies
with the intended operation. Refer to the manual provided with
the machine to determine the maximum allowable feedrate. If
a machine is run at other than the correct speed, it may
behave unexpectedly, possibly causing damage to the
workpiece and/or machine itself, or injury to the user.
4 When using a tool compensation function, thoroughly check
the direction and amount of compensation.
Operating the machine with incorrectly specified data may
result in the machine behaving unexpectedly, possibly causing
damage to the workpiece and/or machine itself, or injury to the
user.
5 The parameters for the CNC and PMC are factory-set.
Usually, there is no need to change them. When, however,
there is no alternative other than to change a parameter,
ensure that you fully Failure to set a parameter correctly may
result in the machine behaving unexpectedly, possibly causing
damage to the workpiece and/or machine itself, or injury to the
user.