4
Product
Description
EDBC250SIO | 2.0
130
4.2.2
Qualified Persons
The safety-related products may be used by the following persons only:
•
Qualified persons who know the applicable concepts of functional safety as well as the rele-
vant standards and regulations.
•
Qualified persons who plan, design, install and put machine and system safety equipment
into operation.
This manual's safety instructions construe qualified persons as persons whose training, experi-
ence, instructions and knowledge of the applicable standards, codes, accident prevention reg-
ulations and operating conditions authorise them to perform the required work and enable
them to recognise and avoid potential hazards associated with that work. Language skills suffi-
cient to understand this manual are therefore part of this qualification.
ATTENTION
The safety-related products may be used by the following persons only.
Qualified persons who know the applicable concepts of functional safety as
well as the relevant standards and regulations.
Qualified persons who plan, design, install and put machine and system
safety equipment into operation.
4.2.3
Disclaimer of Liability
The operator is responsible for self-reliantly running the safety-related control components in
conformity with the requirements set by the competent authority.
The manufacturer shall neither be held liable nor accept any warranty for damages caused by:
•
inappropriate use
•
non-compliance with standard and directives
•
unauthorized modifications of devices, connections or settings
•
use of unapproved or unsuitable equipment or equipment groups
•
non-observance of the safety instructions contained in this manual
4.3
Safe State
There are two different types of "safe states".
The first one is functional and depends on the machine's application, operation and software.
It is the aimed-for safe functional state at which the system works without problems.
The second one is the fail-safe state and applies whenever a fault or error occurs in any of the
monitored components.