Festo DNCKE 40 Serie Notice D'utilisation page 44

DNCKE/KEC
12 Fault clearance
Malfunction Possible cause
Clamping can­ Clamping unit leaky
not be released.
Insufficient operating pressure
Clamping unit not correctly adjusted Readjust round material (è 6.2 Adjustment
Hard stop at the Speed too high
cylinder's end Insufficient cushioning
position Payload too great
Round material Payload too great
slips through.
Operating pressure on cylinder too
high
Round material contaminated
Round material does not meet the
quality requirements
Clamping unit not correctly adjusted
or worn
Clamping component worn or
clamping mechanism defective
Position sensing Incorrect position of proximity
malfunctions at sensors
the DNCKE
Incorrect type of proximity sensor
used
Proximity sensor defective
Ferritic components in the vicinity of
the proximity sensor.
Tab. 13
44
Remedy
Send clamping unit to Festo with a descrip­
tion of the fault.
Increase operating pressure to maximum
permitted value.
of the clamping unit).
Reduce impact speed.
Increase cushioning or use additional ex­
ternal cushioning components.
Reduce payload.
Reduce operating pressure.
Change activation.
Clean the round material with a soft cloth
and protect from dirt.
Comply with specifications for the quality of
the round material (è 13 Technical data).
Readjust round material (è 6.2 Adjustment
of the clamping unit).
Replace clamping unit or send it to Festo
with a description of the fault.
Correct position of proximity sensors.
Only use suitable proximity sensors
(è www.festo.com/catalogue).
Replace proximity sensor.
Use components made of non-magnetic
materials.
Festo – DNCKE/KEC – 1606a English