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Diagnostic messages
Festo – GDCP-CMMP-M3/-M0-C-CO-EN – 1510b – English
237
Error group 11
Homing
No.
Reaction
Message
Code
11-5
8A85h
Homing: I²t / following error
configurable
Cause
–
Unsuitable acceleration ramp parameters.
–
Change of direction due to premature triggering of following
error; check parameterisation of following error.
–
No reference switch reached between the end stops.
–
Zero pulse method: End stop reached (not permissible here).
Measure
Parameterise the acceleration ramps so they are flatter.
Check connection of a reference switch.
Method appropriate for the application?
11-6
8A86h
Homing: End of search path
configurable
Cause
The maximum permissible path for the homing run has been trav
elled without reaching the point of reference or the homing run
destination.
Measure
Fault in switch detection.
Switch for homing faulty?
11-7
-
Homing: Error encoder difference monitoring
configurable
Cause
Deviation between the actual position value and commutation
position is too great. External angle encoder not connected or
faulty?
Measure
Deviation fluctuating, e.g. due to gear backlash; increase cut-
off threshold if necessary.
Check connection of the actual value encoder.
Error group 12
CAN communication
No.
Code
Message
Reaction
12-0
8180h
CAN: Double node number
configurable
Cause
Node number assigned twice.
Measure
Check the configuration of the participants on the CAN bus.
12-1
8120h
CAN: Communication error, bus OFF
configurable
Cause
The CAN chip has switched off communication due to communica
tion errors (BUS OFF).
Measure
Check cabling: cable specification adhered to, broken cable,
maximum cable length exceeded, correct terminating resistors,
cable screening earthed, all signals terminated?
If necessary, replace device as a test. If a different device works
without errors with the same cabling, send the device to the
manufacturer for inspection.