
SAFETY PRECAUTIONS B-63434EN/02
s-4
WARNING
7. The operator’s manual and programming manual supplied with a CNC unit provide an overall
description of the machine’s functions, including any optional functions. Note that the optional
functions will vary from one machine model to another. Therefore, some functions described in
the manuals may not actually be available for a particular model. Check the specification of the
machine if in doubt.
8. Some functions may have been implemented at the request of the machine-tool builder. When
using such functions, refer to the manual supplied by the machine-tool builder for details of their
use and any related cautions. Refer to the following two examples.
<1> Some machines have a tool replacement device that operates when a tool feature is
executed. When the user is working near the device, he or she may touch it. Execute tool
features in a place sufficiently away from the tool replacement device.
<2> Many auxiliary features cause machine operation such as rotation of the spindle.
Understand the operations of auxiliary features before using them.
NOTE
Command programs, parameters, and variables are stored in nonvolatile memory in the CNC unit.
Usually, they are retained even if the power is turned off. Such data may be delated inadvertently,
however, or it may prove necessary to delete all data from nonvolatile memory as part of error
recovery.
To guard against the occurrence of the above, and assure quick restoration of deleted data, backup all
vital data, and keep the backup copy in a safe place.