Structure And Function - SICK L 4000 Manual De Instrucciones

Chapter 3
Fig. 2: Safety evaluation
device UE 401
Tab. 1: LED displays of the
safety evaluation device
UE 401
290
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
Product description
3.3

Structure and function

The safety evaluation device UE 401 is intended for mounting in the
control cabinet on a mounting rail (35 mm) ( Fig. 2).
Along with the 7-segment display (for diagnostics), there are 3 LEDs
on the front panel:
Display Label
Red OSSD OFF
Green
OSSD ON
Yellow RESET
The connection terminals can be removed so that it is not necessary
to undo the connections on replacement of the control unit.
Operating Instructions
Explanation
Switching outputs that control the
safety circuit, inactive
Switching outputs that control the
safety circuit, active
Reset required
8010009/TI69/2009-11-26
L 4000 system
OSSD ON
OSSD OFF
RESET
STATUS
UE 401