Festo ELGL-LAS Notice D'utilisation page 67

Fault
Linear axis not responding
Malfunction in the commutation
point search
Uneven force development in
relation to the direction of move-
ment
Uncontrolled movements
Abrasive marks on the stator/
increased friction
Note
Please also check the error messages and warnings from the controller and
parametrisation software in the event of malfunctions.
Should you still need help, then please don't hesitate to contact the Festo
service department and please don't forget to have the device details
(type/serial number), as well as the configuration data, project files etc. at
hand along with an (as far as possible) exact description of the error.
66
Possible cause
Temperature monitoring active
Incorrect parametrisation
Linear axis is behind the end
position / homing fault
Not enabled
Unfavourable resonance for the
selected commutation
process
The commutation angle is not
correct
Defects on the measuring head
and/or measuring tape, e.g. due
to mechanical, electrical or mag-
netic damage
The function of the air cushion
bearing is limited in that the air
pressure is too low
Distortion in stator or the slide
during operation, e.g. due to the
load being too great or thermal
deformation
Function of the air cushion bear-
ing is limited due to blocked noz-
zles, e.g. oily or otherwise con-
taminated compressed air
Remedy
Observe permitted loading values
(take into account temperature
fluctuations during course of
year)
Check parameters in the control-
ler
Manually push the linear axis out
of the end position (air on, power
off!)
Apply 24 V to enable input
Change commutation
angle search process in FCT or change
parametrisation.
Change commutation
search process in FCT or change
parametrisation
Check the distance of the measur-
ing head to the measuring tape
(limit value <0.8 mm over the
entire area of movement).
If this is otherwise the case, al-
ways consult the Festo service
department
Increase the air pressure to a
min. 4 bar
Correct alignment and stress-fee
assembly of stator and effective
load; check the flatness using
straight-edge
Please consult the Festo service
department for having the bear-
ing nozzles replaced.
Make sure the compressed air is
filtered and oil-free by using 5 µm
filters
FESTO ELGL-en 0904NH
angle
angle