B
Diagnostic messages
Festo – GDCP-CMMD-AS-HW-EN – 1404NH – English
59
Error group 07
Intermediate circuit
No.
Code
Message
Reaction
07-0
3210h
Overvoltage in 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)
Action
•
Check the design of the braking resistor (positioning drives);
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.
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.
