Installing The External Accessories - Festo ELGA-TB-G Instrucciones De Utilizacion

ELGA-TB-G/-RF(-F1)
5.1.3

Installing the external accessories

To protect the end positions against uncontrolled overtravel:
• Check whether proximity sensors are necessary (hardware limit switches).
If proximity sensors are used as limit switches:
• Preferably use proximity sensors with normally-closed function.
These will protect an ELGA against overtravel of the end position in case of a broken proximity
sensor cable.
If proximity sensors are used as reference switches:
• Use proximity sensors that correspond to the input of the controller being used.
• Use proximity sensors with switch lug aC (è Mounting instructions of the accessory used).
Mounting
in the slots 9 (è Fig. 2)
1) For ELGA-TB-RF-F1 no slots available
2) Only for ELGA-TB-RF-F1
Tab. 4
• 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).
To avoid contamination:
• Use slot covers in all unused slots.
Festo – ELGA-TB-G/-RF(-F1) – 1409b English
with sensor bracket aD
1)
aC
9
with mounting kit aE
aD
aC
2)
aC
aE
29