
2.HOW TO USE SERVO MOTORS SPECIFICATIONS FOR THE αiS/αi SERIES B-65262EN/03
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Drip-proof environment
The level of motor protection is such that a single motor unit can
satisfy IP65 of the IEC standard. (The fan-equipped models is
excluded.) However, this standard relates only to short-term
performance. So, note the following when using the motor in actual
applications:
• Protect the motor surface from the cutting fluid or lubricant.
Use a cover when there is a possibility of wetting the motor
surface. Only the telescopic cover of the sliding part can not
completely prevent leakage of the cutting fluid. Pay attention to
the drop along the structure body, too.
• Prevent the cutting fluid from being led to the motor through the
cable. When the motor connector is used in the up position, put a
drip loop in the cable.
• When the motor connector is up, the cutting fluid is collected in
the cable connector through the cable. Turn the motor connector
sideways or downward as far as possible. Most of the defects
caused by the cutting fluid have occurred in the cable connector.
The standard receptacle on the motor side is waterproof. If the
cable connector will be subjected to moisture, it is recommended
that an R class or waterproof plug be used. Suitable plugs are
listed in the cable plug combination recommendations in Chapter
8. (The standard MS plug is not waterproof; water is liable to
enter the pin section.)