Unprotected secondary sections can be damaged if this dirt or pollution is caught by the
primary section or by moving machine parts and is ground or is trapped in the air gap.
The dirt and pollution to be expected in the machine must be taken into consideration
when deciding whether a secondary section cover is necessary. When 1FN3 linear motors are
installed corresponding to the specications, then a relatively large air gap is obtained so that
small particles of dirt cannot result in any mechanical contact between moved and stationary
parts. The length of any cleaning intervals required can be appropriately selected to reect
this. Further, smaller deformations of the machine, as a result of high acceleration levels for
example, do not result in any mechanical contact.
The use of cover plates increases the magnetic air gap, and reduces the motor force.
Installation
5.3Procedure when installing the motor
Naturally-Cooled 1FN3 Linear Motors
Operating Instructions, 06/2023, A5E52220465B AB 73
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