Wieland podis?MOT FA C 1I3O, Operating Instructions Manual, Page: 9 / 60

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Wieland Electric | BA000341 | 02.2007
1 | General Information
All project planning, programming, installation, commissioning, operation and maintenance
work in conjunction with the podis electronics products may be performed only by trained
personnel (e.g. skilled persons, electrical engineers). The project planning and programming
personnel must be familiar with the safety concepts of automation technology.
The operating personnel must be trained in handling the controller and be familiar with the
operating instructions. The installation, commissioning and maintenance personnel must have
training that allows them to perform operations on automation systems.
Warnings about obvious misuse and unsafe handling are featured at the corresponding loca-
tions.
NOTICE
The manufacturer is not liable for damages resulting from improper use.
.6 Project planning, programming, installation, commissioning, and operation
With respect to their application, the field distributors of the podis series are generally a part
of larger systems or plants in which machines are controlled. For the project planning, installa-
tion and commissioning of the podis systems as part of the control of machines, the machine
manufacturer and user must must, therefore, observe the safety regulations of machine direc-
tive 89/392/EWG. For the specific application case, the national accident prevention regulations
apply, such as VBG 4.0.
All safety devices of the controlled machine must be implemented in such a way that they
operate independent of the controller. EMERGENCY OFF devices must remain effective in
all operating modes of the controller. In an EMERGENCY OFF case, the supply voltages of all
switching elements controlled by the controller must be switched off. A safety relay can be
used for this purpose.
Precautions must be taken that an interrupted control program can be properly started
again after voltage dips and power failures. No dangerous operating states may occur, not even
briefly. If necessary, EMERGENCY OFF must be forced. To prevent a an open circuit on the
signal side from causing undefined states in the controller, the corresponding safety measures
must be taken for the I/O coupling with respect to hardware and software. Devices of the
control technology and their controls must be installed in such a way that they are sufficiently
protected against inadvertent activation.
The automation devices must be de-energized before they are assembled or disassembled
or the design is changed.
Selection of
personnel and
qualification
Selection of
personnel and
qualification
Obvious misuse Obvious misuse