Eliminating Faults - Festo DNCKE Série Notice D'utilisation

DNCKE-.../KEC-...
11

Eliminating faults

Fault
Clamping does Clamping does Clamping unit is not
not open
Clamping rod
b breaks ks
through
Hard knocking
in cylinder end
position
Faults in
position
interrogation i t ti
on the
DNCKE-...
Fig. 29
Festo DNCKE-.../KEC-... 0204NH English
Possible cause
Clamping unit is not
sealed tight
Operating pressure too
low
KEC-... not correctly
adjusted
Mass too high
Speed too high
Clamping rod dirty
KEC-... not correctly
adjusted
Speed too high
Insufficient cushioning
Position of the proximity
switch incorrect
Incorrect type of proximity
switched used
Proximity switch defective
Ferritic parts in vicinity of
proximity switch
Remedy
Return to Festo with description of Return to Festo with description of
fault
Increase operating pressure up to
maximum permitted value.
Adjust clamping rod again
(see chapter "Commissioning –
preparation")
Reduce the accelerated mass
Select lower speed / brake
additionally with power valves
Clean the clamping rod with a soft
cloth and protect from dirt
Adjust clamping rod again
(see chapter "Commissioning –
preparation")
Reduce impact speed / increase
cushioning or use additional
external cushioning elements
Correct the position of the
proximity switch
Use only proximity switches of
type SME/SMT-8-...-B
Replace proximity switch
Use parts made of non-magnetic
materials
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