Operating Instructions Chapter 9
WSU/WEU263
8013338/YTA4/2016-03-24 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 33
Subject to change without notice
Technical specifications
9 Technical specifications
Minimum Typical Maximum
General system data
Operating range
WEU26-3-103A00
WEU26-3-203A00
0.5 m
15 m
20 m
70 m
Number of beams 1
Synchronisation optical, without separate synchronisation cable
Detection capability 30 mm
Protection class
(EN 50178:1998)
1
)
I
Enclosure rating (IEC 60529) IP 67
Operating mode Protective operation without start and restart interlock
Supply voltage V
S
2)
19.2 V DC 24 V DC 28.8 V DC
Residual ripple
3
)
±10 %
Power-up delay of receiver and
sender before ready
5 s 10 s
Type Type 4 (IEC 61496)
Safety integrity level
4)
SIL3 (IEC 61508), SILCL3 (EN 62061)
Category Category 4 (EN ISO 13849)
Performance Level
4
)
PL e (EN ISO 13849)
B
10d
value AC-15, 230 V, 0.4 A: 1 x 10
6
switching operations
AC-15, 230 V, 2.0 A: 2.6 x 10
5
switching operations
DC-13, 24 V, 0.6 A: 1 x 10
6
switching operations
DC-13, 24 V, 1.5 A: 2 x 10
5
switching operations
PFHd (mean probability of a
dangerous failure per hour)
4.0 x 10
–9
T
M
(mission time) 20 years (EN ISO 13849)
1)
Safety extra-low voltage SELV/PELV is mandatory.
2)
The external voltage supply must be capable of buffering brief mains voltage failures of 20 ms as specified in
EN 60204. Suitable power supplies are available as accessories from SICK.
3)
The maximum supply voltage limits must not be exceeded, minimum levels must be achieved.
4)
For detailed information on the exact design of your machine/system, please contact your local SICK
representative.
specifications