B Diagnostic messages
56 Festo – GDCP-CMMS-AS-G2-HW-EN – 1310NH – English
Error group 07 Intermediate circuit
No. Code Message Reaction
07-0 3210h Overvoltage in the intermediate circuit PS off
Cause Braking resistor is overloaded; too much braking energy which
cannot be dissipated quickly enough.
– Resistor capacity is incorrect?
– Resistor not connected c orrectly?
– Check design (application)
Action • Check the design of the braking resistor (PositioningDrives),
resistance value may be too great.
• Check the connection to the braking resistor
(internal/external).
Error group 08 Angle encoder
No. Code Message Reaction
08-6 7386h Angle encoder communication fault PS off
Cause Communication to serial angle encoders is disrupted (EnDat
encoders).
– Angle encoder connected?
– Angle encoder cable defective?
– Angle encoder defective?
Action • Check whether encoder signals are faulty?
• Test with another encoder.
• Check angle encoder cable.
When operating with long motor cables:
• Observe the instructions regarding EMC-compliant installation!
Additional suppression measures necessary for cables longer
than 15 m.
08-8 7388h Internal angle encoder error PS off
Cause Internal monitoring of the angle encoder has detected an error and
forwarded it via serial communication to the controller.
Possible causes:
– Excess rotational speed.
– Angle encoder defective.
Action If the error occurs repeatedly, the encoder is defective. Change
encoder incl. encoder cable.
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