Festo ELFA-KF Series, Руководство по эксплуатации

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ELFA-KF/-RF
Festo – ELFA-KF/-RF – 2019-05d English 9
5.1.3 Mounting 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 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
aA
(
è
Assembly instructions for the accessory).
Mounting options for proximity sensors
in the slots
9
(
è
Fig. 1) with sensor bracket
aB
9
aA
aB
aA
Fig. 8
Avoid external influences from magnetic or ferritic parts in the vicinity of the proximity sensors
(minimum distance of 10 mm from the slot nuts).
Use slot covers in all unused slots to prevent contamination (
è
www.festo.com/catalogue).
Connection option for sealing air
Connect sealing air. To do this, remove the threaded pin
(
aJ è
Fig. 9) on the cover and connect the compressed
air/vacuum suction supply. For additional protection, use
both sealing air connections.
Fig. 9
aJ