SICK WEU26-3 User Manual

Chapter 3 Operating Instructions
WSU/WEU263
12 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8013338/YTA4/2016-03-24
Subject to change without notice
Product description
3.3 Structure and function
T
he WSU/WEU26@3 devices are equipped with diagnostics LEDs:
Diagnostics LEDs of the sender
WSU26-3
Display
Yellow Red
Meaning
  Device on, test inactive
  Device on, test active, test contacts open
Diagnostics LEDs of the receiver
WEU26-3
Display
Green Yellow Red
Meaning
   Output signal switching devices on, light path
unoccupied
   Output signal switching devices off, light path
interrupted or inadequate alignment or device
not yet ready after switch on (see technical
specifications)
   Output signal switching devices on, light path
unoccupied, weak signal
   Output signal switching devices off, light path
interrupted or inadequate alignment. Prior to the
complete interruption of the light path the signal
was weak.
Fig.
2
:
Diagnostics LEDs
WSU26-3
Tab.
3
:
Diagnostics LEDs
WSU26-3
Fig.
3
:
Diagnostics LEDs
WEU26-3
Tab.
4
:
Diagnostics LEDs
WEU26-3
 
Yellow Red
  
Green Yellow Red

SICK WEU26-3 Specifications

General

Brand	SICK
Model	WEU26-3
Category	Security Sensors
Language	English