Additional Diagnosis Possibility On Encoders With Endat Interface; Corrective Action - HEIDENHAIN iTNC 530 Service Manual

17.2.5 Additional Diagnosis Possibility on Encoders with EnDat Interface

On the information page "EnDat Speed Encoder" you can see whether so-called alarm bits are
set:
Calling the page --> See "Integrated Diagnosis Functions" on page 7 – 41.

17.2.6 Corrective action

If you have found out that the interface on the control is defective ...
If you have found out that the motor encoder in a synchronous motor is defective (the
HEIDENHAIN axis motors are normally synchronous motors with the designation QSY xxx):
If you have found out that the motor encoder in an asynchronous motor is defective (the
HEIDENHAIN axis motors are normally asynchronours motors with the designation QAN xxx) ...
17 – 292
Exchange the control. --> See "Exchange of HEIDENHAIN Components" on page 26 – 411.
Exchange the synchronous motor completely!
Caution
Motor encoders in synchronous motors must be adjusted to a certain position.
This adjustment is performed by HEIDENHAIN.
Therefore, you must not exchange the motor encoder yourself!
In additon, new motors have so-called electronic ID labels. This electronic ID label for the
motor is stored in the motor encoder with EnDat interface. When exchanging the motor
encoder, the electronic ID label must be written again. This is made at HEIDENHAIN.
Exchange either the complete asynchronours motor or the motor encoder.
Note
In certain asynchronous motors, replacing the motor encoder may be very complicated due
to their construction (in this case, nearly all add-on parts of the motor need to be removed
and/or the cables in the terminal box disconnected and/or the signal socket removed with
special tools).
Such a motor should be sent to HEIDENHAIN for repair.
HEIDENHAIN Service Manual iTNC 530