Mounting The Accessories - Festo ELFA-RF 70 Notice D'utilisation

ELFA-RF
5.1.3

Mounting the accessories

To protect the end positions against uncontrolled excess travel:
• Check the necessity of proximity sensors (hardware limit switches).
If proximity sensors are used as limit switches:
• Preferably use proximity sensors with normally-closed function.
This protects against excess travel beyond the end position, if the proximity sensor cable is broken.
If proximity switches are used as reference switches:
• Use proximity sensors that correspond to the input of the controller being used.
• Use proximity sensors with switch lug aA (è Assembly instructions for the accessory).
Mounting
In the slots 9 (è Fig. 1)
Tab. 3
• Avoid external influences from magnetic or ferritic parts in the vicinity of the proximity sensors (min­
imum distance of 10 mm from the slot nuts).
• Avoid contamination:
– Use slot covers in all unused slots
catalogue).
– Connect sealing air. To do this, remove the threaded pin
(aC è Fig. 7)
on the cover and connect compressed air/va­
cuum. For additional protection, use both sealing air connec­
tions.
20
With sensor bracket aB
aA
9
(è www.festo.com/
aC
Fig. 7
Festo – ELFA-RF – 1509b English
aB
aA