S5-95F
Guidelines for the Planning and Installation of the Product
3
Guidelines for the Planning and Installation of
the Product
The following sections contain instructions on the planning and installation of systems or plants
equipped with programmable controllers.
3.1
Guidelines on the Safe Integration of the Product into its
Environment
Since the product generally forms part of a larger system or plant, these guidelines are intended to
help integrate the product into its environment without it constituting a source of danger.
!
Warning
•
Make sure that the conditions of inspection of the S5-95F and the instructions for
safety-related use of the S5-95F contained in this manual are adhered to.
•
Strictly follow the safety and accident prevention rules that apply in each particular
case.
•
In the case of equipment with a permanent power connection which is not provided
with an isolating switch and/or fuses which disconnect all poles, a suitable isolating
switch or fuses must be provided in the building wiring system (distribution board).
Furthermore, the equipment must be connected to a protective ground (PE)
conductor.
•
Before switching on the equipment, make sure that the voltage range setting on the
equipment corresponds to the local power system voltage.
•
In the case of equipment operating on 24 V DC, make sure that proper electrical
isolation is provided between the mains supply and the 24V supply. Only use power
supply units to DIN VDE 0551 or EN 60742 and DIN VDE 0160 (see section 4.1.2).
Also strictly follow the conditions of electromagnetic compatibility (EMC) (see
Chapter 3).
•
Fluctuations or deviations of the power supply voltage from the rated value should
not exceed the tolerances specified in the technical specifications. Otherwise,
functional failures or dangerous conditions can occur in the electronic
modules/equipment.
•
Suitable measures must be taken to make sure that programs that are interrupted by
a voltage dip or power supply failure resume proper operation when the power
supply is restored. Care must be taken to ensure that dangerous operation
conditions do not occur even momentarily. If necessary, the equipment must be
forced into the "emergency off" state.
•
Emergency tripping to devices in accordance with EN 60204/IEC 204 (VDE 0113)
must be effective in all operating modes of automation equipment. Resetting the
emergency off device must not result in any uncontrolled or undefined restart of the
equipment.
•
Install the power supply and signal cables in such a manner as to prevent inductive
and capacitive interference voltages from affecting the automation functions.
•
Automation equipment and its operating elements must be installed in such a
manner as to prevent unintentional operation.
•
Automation equipment can assume an undefined state in the case of wire break in
the signal lines. To prevent this, suitable hardware and software measures must be
taken when interfacing the inputs and outputs of the automation equipment.
EWA 4NEB 812 6210-02
3-1
