
2. PRECAUTIONS ON USE
B–65142E/04
DESCRIPTIONS FOR THE α series
18
The ambient temperature should be 0°C to 40°C. When operating the
machine at a higher temperature, it is necessary to lower the output power
so that the motor temperature does not exceed the specified constant
value. (The values in the data sheet are determined for an ambient
temperature of 20°C.)
When installed in a machine, the vibration applied to the motor must not
exceed 5G.
Up to 1,000 meters above the sea level requires, no particular provision
for attitude. When operating the machine at a higher level, special care
is unnecessary if the ambient temperature is lowered 1°C at every 100m
higher than 1,000m. For example, when the machine is installed at a place
of 1,500 meters above sea level, there is no problem if the ambient
temperature is 35°C or less. For higher temperatures, it is necessary to
limit the output power.
If any one of the three environmental conditions specified above is not
satisfied, the output must be restricted.
The level of motor protection is such that a single motor unit can satisfy
IP65 of the IEC standard. (The connector section for the fan of
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:
D 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.
2.5
ENVIRONMENT
Ambient temperature
Vibration
Installation height
Drip–proof environment