
5. NOTES ON OPERATION
B–65152E/03
BCATLTLON EOT TFC α
38
5
NOTES ON OPERATION
WARNING
1 Securing earthing
When supplying voltage to the main motor or the fan motor,
ensure that the earth cable is connected to the earth
terminal and secure that the main motor is put to earth
certainly.
2 After a continuous and long operation, the temperature of
model a 0.5 and a series IP55 models may rise higher than
other motors because they have no fan motor. So please
treat them carefully.
CAUTION
1 Sound and vibration
Check that there is no abnormal sound or vibration.
2 Cooling
Clean the cooling–air inlet and outlet every year to ensure
good ventilation.
Check that the fan motor rotates in the direction indicated
by the arrow on the fan housing. Also check that cooling air
flows in the correct direction.
NOTE
Breaking in a motor
To increase the operating lifetime of a motor of these series,
break in the motor. As a guideline, increase the speed of the
motor from 1000 min
–1
to its maximum speed in 1000 min
–1
increments, and operate the motor at each speed for about
5 minutes.