Chapter
2
Operating Instructions
miniTwin2
8
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8013482/YT85/2016-02-23
Subject to change without notice
On safety
2
On safety
This chapter deals with your own safety and the safety of the equipment operators.
Please read this chapter carefully before working with the miniTwin2 or with the
machine protected by the miniTwin2.
2.1
Qualified safety personnel
The miniTwin2 safety light curtain must be installed, connected, commissioned and
serviced only by qualified safety personnel. Qualified safety personnel are defined as
persons who …
due to their specialist training and experience have adequate knowledge of the power-
driven equipment to be checked
and
have been instructed by the responsible machine owner in the operation of the machine
and the current valid safety guidelines
and
are sufficiently familiar with the applicable official health and work safety regulations,
directives and generally recognized engineering practice (e.g. DIN standards, VDE
stipulations, engineering regulations from other EU member states) that they can
assess the work safety aspects of the power-driven equipment
and
who have access to these operating instructions and who have read them.
As a rule these are qualified safety personnel from the ESPE manufacturer or also those
persons who have been appropriately trained at the ESPE manufacturer, are primarily
involved in checking ESPE and are allocated the task by the organisation operating the ESPE.
2.2
Applications of the device
The miniTwin2 safety light curtain is an electro-sensitive protective equipment (ESPE)
type 2 according to IEC 61 496
A
1. The safety level of the miniTwin2 corresponds to
category 2 PL c according to EN ISO 13 849
A
1 and SIL1 according to IEC 61 508.
The miniTwin2 safety light curtain is suitable for:
hazardous point protection (finger and hand protection)
hazardous area protection
access protection
Access to the hazardous point must be allowed only through the protective field. The
plant/system is not allowed to start as long as personnel are within the hazardous area.
Refer to section 3.3 “Application examples” on page 15 for an illustration of the protection
modes.
Only use the safety light curtain as an indirect protective measure!
An opto-electronic protective device provides indirect protection, e.g. by switching off the
power at the source of the hazard. It cannot provide protection from parts thrown out, nor
from emitted radiation. Transparent objects are not detected.
Depending on the application, mechanical guards may be required in addition to the safety
light curtain.
WARNING
