2 8 6
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
Contents
7 7 7 7 7
Maintenance ............................................................................................. 3 1 4
7 . 1
Repair ........................................................................................................... 3 1 4
7 . 2
Disposal ....................................................................................................... 3 1 5
8 8 8 8 8
Troubleshooting ...................................................................................... 3 1 6
9 9 9 9 9
Technical data .......................................................................................... 3 1 7
9 . 1
9 . 2
1 0
1 0
1 0
1 0
1 0
11
11
11
Appendix ..................................................................................................... 3 2 2
11
11
1 1 . 3 Accessories .............................................................................................. 3 2 3
1 1 . 4 Dimensional Drawings ....................................................................... 3 2 3
1 1 . 5 Testable single-beam photoelectric safety switches . 3 2 4
1 1 . 5 . 1 WS/WE 12-2 ...................................................................... 3 2 4
1 1 . 5 . 2 WS/WE 18-2 ...................................................................... 3 2 6
1 1 . 5 . 3 VS/VE 18-2 ......................................................................... 3 2 8
11.5.4 WS/WE 24-2 ....................................................................... 3 3 0
11.5.5 WS/WE 27-2 ........................................................................ 3 3 2
1 1 . 6 Declaration of conformity .............................................................. 3 3 4
1 1 . 7 Checklist .................................................................................................... 3 3 7
Operating Instructions
Safety Evaluation Unit LE 20
8 008 685/Q913/2007-05-21