
SAFETY PRECAUTIONS
B–65152E/03
10
NOTE
D Do not attempt to modify the motor.
Do not modify the motor unless requested by FANUC. Otherwise, the motor may operate
abnormally or malfunction.
D Use the motor under the specified conditions in an appropriate environment.
Using the motor under other than the specified conditions, or in an unsuitable environment, may
cause the motor to malfunction or even result in an accident. Refer to the Descriptions for details
of the operating environment and conditions.
D Do not connect the motor directly to the commercial power supply.
Connecting the motor directly to the commercial power supply may result in the windings
burning out. Power must only be supplied via the specified amplifier.
D For a model having a terminal box, prepare a conduit hole only at a specified location.
When making a conduit hole, be careful not to crack or damage other than the specified location.
For details, refer to the Descriptions.
D Ensure that the winding resistance and insulation resistance are normal, before attempting
to use the motor.
Always measure the winding resistance and insulation resistance, particularly when the motor
has been in storage for a long time. The motor may have deteriorated depending on the conditions
and duration of the storage. For details of the winding resistance, refer to the Descriptions or
contact FANUC. For details of the insulation resistance, see the table given below.
D Perform periodic maintenance and inspection (including measurement of the winding
resistance and insulation resistance) to ensure the safe operation of the motor and prolong
its service life.
Note, however, that certain types of inspection such as dielectric strength testing may damage
the windings. For details of the winding resistance, refer to the Descriptions or contact FANUC.
For details of the insulation resistance, see the table given below.