The machine construction surrounding the motor must fulll degree of protection IP54 to
DINEN60529 as a minimum.
The degree of protection for built-in motors is governed by the surrounding machine
construction. The better the motor installation space is protected against the ingress of
foreign particles (ferromagnetic particles), the longer the service life.
In particular, foreign particles in the air gap between the stator and rotor can destroy the
motor during operation.
This also applies to corrosive chemicals (e.g. coolants, oil) that could penetrate the motor
compartment. Corrosive chemicals can damage the magnetic bonds of the rotor.
Liquids can compromise the insulation resistance of the stator.
The thermal properties of the motor are inuenced by the ingress of liquids and foreign
particles.
1FW6 torque motors have degree of protection IP23.
3.1.7 Noise emission
WARNING
Hearing damage
Hearing damage may occur if the motor exceeds a sound pressure level of 70 dB (A) due to the
type of mounting or pulse frequency.
• Reduce the sound pressure level by implementing sound damping and/or soundproong
measures.
The following components and settings inuence the noise levels reached when built-in motors
are operational:
• Machine design
• Encoder system
• Bearing
• Controller settings
• Pulse frequency
As a result of unfavorable machine designs, conguration or system settings, measuring
surface sound pressure levels of over 70dB (A) can occur. Contact Application & Mechatronic
Support Direct Motors if you require help in applying remedial measures. You can nd
contact data in the Introduction under "Technical Support".
Description
3.1Technical features and ambient conditions
1FW6 built-in torque motors
36 Operating Instructions, 09/2022, A5E52220812B AA
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