DNCKE-.../KEC-...
Festo DNCKE-.../KEC-... 0204NH English
33
11
Eliminating faults
Fault
Possible cause
Remedy
Clamping does Clamping unit is not
Return to Festo with description of
Clamping does
not open
Clamping unit is not
sealed tight
Return to Festo with description of
fault
Operating pressure too
low
Increase operating pressure up to
maximum permitted value.
KEC-... not correctly
adjusted
Adjust clamping rod again
(see chapter ”Commissioning –
preparation”)
Clamping rod
b
ks
Mass too high
Reduce the accelerated mass
breaks
through
Speed too high
Select lower speed / brake
additionally with power valves
Clamping rod dirty
Clean the clamping rod with a soft
cloth and protect from dirt
KEC-... not correctly
adjusted
Adjust clamping rod again
(see chapter ”Commissioning –
preparation”)
Hard knocking
in cylinder end
position
Speed too high
Insufficient cushioning
Reduce impact speed / increase
cushioning or use additional
external cushioning elements
Faults in
position
i t
ti
Position of the proximity
switch incorrect
Correct the position of the
proximity switch
interrogation
on the
DNCKE-...
Incorrect type of proximity
switched used
Use only proximity switches of
type SME/SMT-8-...-B
Proximity switch defective
Replace proximity switch
Ferritic parts in vicinity of
proximity switch
Use parts made of non-magnetic
materials
Fig. 29
