SICK WEU26-3 User Manual

Chapter 5 Operating Instructions
WSU/WEU263
24 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8013338/YTA4/2016-03-24
Subject to change without notice
Electrical installation
5.2.3 Pin assignment receiver
Pin Designation
1/2 Voltage supply 24 V DC
3 Ground 0 V
4
5
Safety relay, normally open contact
6
7
Safety relay 1/2, normally closed contacts connected in parallel internally
8
9
Safety relay 2, normally open contact
PE Protective earth
Both normally open contacts are to be used for safety-related functions. In a subsequent
dual-channel circuit the two normally open outputs are to be connected to a safety
controller with a suitable level of safety (see Fig. 15).
The normally closed contacts are not allowed to be used for safety-related functions.
If the downstream logic is realised using discrete contactors, they must be positively
guided and externally monitored. The monitoring cannot be provided by the WEU26-3.
The torque for the PE connection is 2.0 ± 0.5 Nm.
98
76
5
4
32/1
+
+
RESET
2
K
2
K
3
K
3
K
1K 2K
1K
2K
1K
2K
1K
2K
PE
+ 24 V
0 V
+ VE/L
– VE/N
A1
A2
S1
S33 S34 S35
S11
CH1+ CH2+
S12 S31 S21 S22 13 23 31
322414
UE43-2MF2D2
The cross-circuit monitoring on the connecting cables between the normally open contacts
4 and 5 or 8 and 9 on the WEU26-3 is provided by the safety controller UE43.
Tab.
10
:
Assignment of the
sensor contacts, receiver
WEU26-3
Note
Fig.
15
:
Assignment of the
sensor contacts, connection
diagram WEU26-3 on UE43
Note

SICK WEU26-3 Specifications

General

Brand	SICK
Model	WEU26-3
Category	Security Sensors
Language	English