SICK WEU26-3 User Manual

Chapter 2 Operating Instructions
WSU/WEU263
8 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8013338/YTA4/2016-03-24
Subject to change without notice
On safety
2.3 Correct use
T
he WSU/WEU26@3 devices may only be used as specified in chapter 2.2 “Applications of
the device”. They are only allowed to be used by qualified safety personnel and only on the
machine on which they have been installed and initialised by qualified safety personnel as
per these operating instructions.
All warranty claims against SICK AG are forfeited in the case of any other use, or
alterations being made to the WSU/WEU26@3 devices, even as part of their mounting or
installation.
2.4 General safety notes and protective measures
Safety notes
Please observe the following items in order to ensure the correct and safe use of the
WSU/WEU26@3 devices.
• National/international rules and regulations apply to the installation, commissioning,
use and periodic technical inspections of the WSU/WEU26@3 devices, in particular:
– Machinery Directive,
– Work Equipment Directive,
– the work safety regulations/safety rules,
– other relevant safety regulations.
• Manufacturers and operators of the machine on which the WSU/WEU26@3 devices are
used are responsible for obtaining and observing all applicable safety regulations and
rules.
• It is imperative the test notes from page 28 of these operating instructions (“Tests
before the first commissioning”, “Daily functional checks of the protective device”,
“Regular inspection of the protective device by qualified safety personnel”) are followed.
• The tests must be carried out by qualified safety personnel or specially qualified and
authorised personnel and must be recorded and documented to ensure that the tests
can be reconstructed and retraced at any time.
• The operating instructions must be made available to the operator of the machine where
the WSU/WEU26@3 devices are used. The machine operator is to be instructed in the
use of the device by qualified safety personnel and must be instructed to read the
operating instructions.
• The external voltage supply for the devices 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.
• A safety extra-low voltage SELV/PELV must be used to supply power to the
WSU/WEU26@3 devices.
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WARNING

SICK WEU26-3 Specifications

General

Brand	SICK
Model	WEU26-3
Category	Security Sensors
Language	English