All safety-related communication devices must be certified to
IEC 61010 or have a corresponding declaration of conformity.
All PROFIsafe devices used on the bus must have a PROFINET
certificate and a PROFIsafe certificate.
All safety devices must also have a certificate from a “Notified Body”
(e.g., TÜV, BIA, HSE, INRS, UL, etc.).
The 24 V power supplies used must comply with the requirements of
IEC 60364-4-41 SELV/PELV and be NEC Class 2 compliant for UL
applications.
Only use cables and connectors for which the manufacturer has
issued a PROFINET manufacturer’s declaration.
The shielding effect of cables must also be ensured after installation
(bending radii/tensile strength!) and after connector changes. In cases
of doubt, use more flexible cables with a higher current carrying
capacity.
Only use M12 connectors for connecting the measuring system, which
ensure good contact between the cable shield and the connector
housing. Connect the cable shield to the connector housing over a
large area.
Compensating currents caused by differences in potential across the
shield to the measuring system must be prevented.
A shielded and stranded data cable must be used to ensure high
electromagnetic interference stability of the system. The shield should
be connected to protective ground in a well-conducting manner using
large-scale shield clips, if possible on either end. The shielding should
be grounded in the switch cabinet on one end only if the machine
ground is heavily contaminated with interference towards the switch
cabinet ground.
Equipotential bonding measures must be provided for the complete
processing chain of the system.
Power and signal cables must be laid separately. During installation,
observe the applicable national safety and installation regulations for
data and power cables.
Observe the manufacturer's instructions for the installation of
converters and for shielding power cables between frequency
converter and motor.
Ensure adequate dimensioning of the energy supply.
Recommendation: Check the PROFINET network for sufficient
bandwidth reserves (determination of network load) before starting
serial operation.
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