Motor components
3.2 Cooling
1FE1 synchronous built-in motors
Hardware Installation Manual, 12/2016, 610.43000.40b
37
Preventing cavitation
NOTICE
Motor damage caused by cavitation and abrasion
An excessive pressure drop at the motor can cause motor damage as the result of
cavitation and/or abrasion.
•
Operate the motor so that the pressure drop at a converter or motor in continuous
operation does not exceed 0.2 MPa.
Coolant inlet temperature
NOTICE
Motor damage caused by condensation formation
Water condensation can cause motor damage.
•
Select the coolant inlet temperature so that condensation does not form on the surface
of the motor. T
cooling
> T
ambient
- 5 K.
•
Interrupt the supply of coolant for a longer motor standstill.
The motors are designed for full-load operation at m25° C coolant inlet
temperature.
Operation up to +40° C coolant inlet temperature is possible with derating (reduced power).
Note
Derating
The spindle manufacturer is responsible for the derating.
