Festo CMMP-AS-***-M0 Series, Manual

Page: 232 / 294

B Diagnostic messages
232 Festo – GDCP-CMMP-M3/-M0-C-CO-EN – 1510b – English
Error group 8 Angle encoder error
No. Reaction Message Code
8-6 7386h Faulty angle encoder communication configurable
Cause Communication to serial angle encoders is disrupted
(EnDat encoders, HIPERFACE encoders, BiSS encoders).
– Angle encoder connected?
– Angle encoder cable defective?
– Angle encoder faulty?
Measure Check configuration of the angle encoder interface, procedure
corresponding to a) to c):
a) Serial encoder parameterised but not connected? Incorrect
serial protocol selected?
b) Encoder signals faulty?
c) Test with another encoder.
Tab. B.2, page 281.
8-7 7387h Signal amplitude of encoder erroneous [X10] configurable
Cause Faulty A, B, or N tracking signals at [X10].
– Angle encoder connected?
– Angle encoder cable defective?
– Angle encoder faulty?
Measure Check the configuration of the angle encoder interface.
a) Encoder signals faulty?
b) Test with another encoder.
Tab. B.2, page 281.
8-8 7388h Internal angle encoder error configurable
Cause Internal monitoring of the angle encoder [X2B] has detected an
error and forwarded it via serial communication to the controller.
– Diminishing illumination intensity with visual encoders?
– Excess rotational speed?
– Angle encoder faulty?
Measure If the error occurs repeatedly, the encoder is faulty. Replace
encoder.