1.2.2.2.3 Mounting encoder rings
Attention
The magnetic encoder rings are densely packed with magnetic information. Any contact or even close
proximity with external magnetic fields may destroy them permanently! Please consult our handling
instructions for details
Assembling the encoder system in compliance with the following tolerances will allow reaching the specified
accuracy after the calibration procedures.
1.2.2.2.3.1 Axial distance tolerances
Considering the air gap between the ring and the encoder read head, the following dimensions should be
kept during all modes of operation:
A is the distance between an encoder ring and an encoder read head (Air gap)
B is the distance between the top side of an encoder ring and the mounting surface of Circulo
C is the distance between the bottom side of an encoder ring and the mounting surface of Circulo
Important
It is not required to validate all the distances, as long as one of the values A, B or C is within its
respective tolerance window.
Depending on the mounting situation and assembly process in the given application, it is typically
easiest to use either distance B or C as a design point and also for validation.
The distance A is the actual air gap directly on the encoder, but it is difficult to measure it.
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