Festo CMMS-AS-G2 Series, Description

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A Diagnostic messages
Festo – GDCP-CMMS-AS-G2-FW-EN – 1310NH – English 147
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 correctly?
– Check design (application)
Measure • Check the design of the braking resistor (positioning drives);
resistance value may be too great.
• Check the connection to the braking resistor (internal/extern-
al).
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 en-
coders).
– Angle encoder connected?
– Angle encoder cable defective?
– Angle encoder defective?
Measure • Check whether encoder signals are faulty?
• Test with another encoder.
• Check angle encoder cable.
For operation with long motor cables:
• Observe notes on EMC-compliant installation! Additional anti-
interference measures required from 15 m cable length.
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.
Measure If the error occurs repeatedly, the encoder is defective. Replace
encoder including encoder cable.