Eliminating Faults - Festo DNCV Serie Instrucciones De Utilizacion

DNCV−...
11 Accessories
Designation
AS−Interface individual valve module
Sub−base for CPX terminal
Socket with cable
Connecting cable
(for ASI−EVA−... or CPX−AB−...)
Fastening elements
Fig. 19
12

Eliminating faults

Fault
Hard knocking in
stroke end position stroke end position
Faults in position
interrogation
Fig. 20
Festo DNCV−... 0303b English
Type
ASI−EVA−2E2A−M12−8POL−Z
CPX−AB−4−M12−8POL
SIM−M12−8GD−...−PU
KM12−8GD−8GS−2−PU
HNC−.../FNC−.../SNC..../ZNCF−...
Possible cause
Piston speed too high
Cushioning not sufficient
Position of the proximity
switches incorrect
Proximity switch defective
Ferritic parts in vicinity of
proximity switch
Remedy
Reduce piston speed
Increase cushioning or use
external shock absorbers
Correct the position of the
proximity switches on the
adjusting wheel 7
Replace proximity switch
Use parts made of
non−magnetic materials
35