Festo EGC-HD-TB, Руководство по эксплуатации, Страница: 10 / 22

EGC-TB-KF, EGC-HD-TB
10 Festo – EGC-TB-KF, EGC-HD-TB – 2017-11c English
5.1.3 Installing external accessories
To protect the end positions against uncontrolled overrunning:
Check whether proximity sensors are required (hardware limit switches).
If proximity sensors are used as limit switches:
Preferably use proximity switches with normally-closed function.
These will protect an EGC with a fractured proximity switch cable from overrunning the end position.
If proximity switches are used as reference switches:
Use proximity switches that correspond to the input of the controller being used.
Use inductive proximity switches with switch lug
aE
(
è
assembly instructions of the accessory
used).
Mounting
in the grooves
aJ
(
è
Fig. 1) with mounting bracket
aD
aJ
aE
aD
aE
Tab. 4
Avoid external influence caused by magnetic or ferrite parts in the vicinity of the proximity switches
(minimum distance of 10 mm to the slot nuts).
To protect the end positions:
Use emergency buffer or shock absorber (
è
Assembly instructions of the accessory used).
To avoid contamination:
Use slot covers in all unused grooves.