Safety-related Information
Operating Manual XCx 300 / 500 / 540 Version 09/08
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1.2
Selection and Qualification of Personnel
Important!
All configuring, programming, installation,
commissioning, operation and maintenance work on the
automation system must be carried out by trained
personnel such as electricians or electrical engineers.
Personnel responsible for configuring and programming
the system must be familiar with all safety-related issues
in automation technology.
System operators must be instructed on the operation of
the control system and be familiar with the relevant
operating instructions.
All personnel responsible for installing, commissioning
and maintaining the system must have had appropriate
training qualifying them to work on automation systems.
1.3
Configuring, Programming, Installation, Commissioning and Operation
The automation system will in most cases be a part of a larger system
in which machines are controlled. When configuring, installing and
commissioning automation systems to control machines the machine
manufacturer and the user must observe the safety regulations as
defined in the machinery directive 89/392/EWG. For specific applications
national accident prevention regulations such as VBG 4.0 will apply.
Safety-related components on the controlled machine must be
designed such that they operate independently from the control
system. Emergency stop components must be operational in all control
modes. In an emergency stop the power supply to all switching
elements controlled by the control system must be cut off.
Measures must be taken for restarting an interrupted control program
following voltage dips or power failures. Operating conditions should
never cause danger, not even for a short time. In the event of danger
the emergency stop must be immediately triggered.
In order to prevent an open-circuit in the signal circuit causing non-
controllable conditions in the control system, the relevant hardware and
software safety precautions must be taken for I/O interfacing. Control
elements and their assigned control panel elements must be installed
in a place where they are sufficiently protected against inadvertent
use.
1.4
High Voltages
Warning!
When the cabinet is opened or casing is removed from
system components certain parts of the automation
system are exposed. These parts may be subject to
dangerous high voltages.
The user must prevent any unauthorised and incorrect access to the
system (for example, by ensuring that the cabinet is locked).
Personnel must be familiar with all sources of danger and measures for
commissioning and maintaining the system in line with the instructions
given in this manual.
