Festo SFC-DC series, Manual

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6. Diagnosis and error treatment
6−8
Festo P.BE−SFC−DC−IO−EN en 0801a
Fault Possible cause
LOAD−POWER−DOWN Voltage monitoring.
Possible causes:
Load voltage supply lacking or too low.
Voltage dip under load.
·
Check the voltage supply.
Power unit too weak?
Supply line too long?
MOTOR ERROR Motor not connected or open circuit.
Check connection to motor, replace cable if necessary.
OVERHEATING Overheating (operating temperature > 80 °C).
Too high temperature in the power end stage.
·
Check:
that the limits are observed (motor characteristic curves).
the mechanical parts e.g. for stiffness.
·
If necessary, reduce the ambient temperature.
PLEASE ENFORCE HOMING
RUN! When starting a position set:
After the power supply has been switched on, no reference run has
been carried out yet or a reference run was stopped.
·
Carry out a reference run.
POSITION ERROR Position fault (drag fault).
Possible causes:
The drive is blocked.
The positioning speed is too high.
·
Check:
the mechanical parts of the drive.
the speed of the position set.
TARGET OUT OF LIMIT! The specified target position is outside the permitted positioning
range.
·
Check the software end positions and the target position.