Festo SPC-10 Series, Manual

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5.2 Operating faults
1) Slide does not move
Cause Remedy Remarks
No supply pressure Check 5...7 bar required
Valve cable not connected correctly Check See section 3.3.3
Proportional directional control valve
is defective Check and replace
if necessary Look through inspection
window to see if slide
jams
1)
1) See operating instructions for valve MPYE-5-...
2) Bad behaviour during move to end position
Cause Remedy Remarks
System is not fitted correctly Check fitting and
mechanical parts Check potentiometer
and cylinder for
parallelism, mechanical
play and tightness
System is not earthed correctly Check See chapter 3
Incorrect DIL switch setting Check DIL switch
setting See appendix A.1
High fluctuation of supply pressure
(> 0.5 bar) Check supply
pressure If necessary fit
compressed air reservoir
Non-permitted mass load Check mass load
and DIL switch
setting Place a basic load on
the slide so that the
value range is
maintained when
positioning is made with
different masses
Movement to end position too fast/hard Increase cushioning See section 5.3
Movement to end position too slow/soft Reduce cushioning See section 5.3
5. Diagnosis and error treatment
SPC-10 9902a
5-5