Siemens SIMOTICS T-1FW68, Configuration Manual

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Mechanical properties
3.2 Degree of protection
1FW68 radial segment motors
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Configuration Manual, 08/2021, A5E51132930B AA
Suitable mixture
• 25% - 30% ethylene glycol (= ethanediol)
• The water used contains a maximum of 2 g/l dissolved mineral salt and is largely free
from nitrates and phosphates
Manufacturer recommendations: see appendix
3.2 Degree of protection
NOTICE
Damage to the motor caused by pollution
If the area where the motor is installed is polluted and dirty, then the motor can
malfunction and clog up.
• Keep the area where the motor is installed free of all dirt and pollution.
Stator segment
The stator segments comply with the requirements for degree of protection IP63
according to EN 60034-5.
Rotor segments
• Ensure that the air gap between the stator and rotor remains free of chips.
Generally, ferromagnetic particles are no longer attracted from a distance of 200 mm
from the surface of the rotor segment.
• Avoid using abrasive or aggressive substances, e.g. acids.
Installed motor
The better the motor installation space is protected against the ingress of foreign
particles (especially true for ferromagnetic particles), the longer the motor service life.
The space around the motor must be kept free of chips and other foreign bodies.
The degree of protection of the installed motor according to EN 60529 and EN 60034-5 is
primarily dictated by the machine construction, but must be at least IP23.