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FAQ

The SIN/COS value of the SES70 / SEM70; SES90 / SEM90 was shutting down, but there was no error message from the encoder

Article No: KA-02748
Version: 1.1
Subject to change without notice
The SIN/COS value of the SES70 / SEM70; SES90 / SEM90 is shutting down.
Related Products
SES/SEM
motor feedback systems

Table of Contents

What is the reason behind?

If the rotor (code disc) of the SES70 / SEM70; SES90 / SEM90 is scratching at the PCB (doesn't depend, if it is the upper one or the bottom one) than the SIN/COS value is shutting down.

After the SIN/COS value is shut down, the absolute position via the RS485 interface part is still working.


To get again a SIN/COS value, you have to do a power cycle at the encoder.

How to recognize a bad mounting?

The axial position of the rotor can be read out for the SES70 / SEM70 and SES90 / SEM90 models using the command “6Dh – Axial
Position”. This is how a bad mounting of the SES70 / SEM70, SES90 / SEM90 can be recognized.

 
The command can be used to check whether the motor feedback system has been correctly mounted on the motor. In addition, 
it is possible to monitor axial expansions of the motor shaft due to temperature during operation, for example. The axial position is 
sub-divided into five categories:
Keywords:
sin cos value, hiperface, no sin/cos, sin/cos, motor feedback, ses70, sem70, ses90, sem90
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