Important Information On The Configuration And Installation Of The Ip - Siemens SIMATIC S5 Manual

IP 265
3.4 Important Information on the Configuration and Installation of the
IP 265
Since the module usually constitutes a part of a larger system or plant, this information is intended
as a guideline for the safe integration of the product into its environment.
Guidelines to be considered for installation and startup of the product - depending on the application:
Warning
• Follow strictly 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 24 V supply. Only use
power supply units to IEC 364-4-41 or HD 384.04.41 (VDE 0100 Part 410).
• 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 operating conditions do not occur even momentarily. If necessary,
the equipment must be forced into the "emergency off" state.
• Emergency tripping devices in accordance with EN 60204/IEC 204 (VDE 0113)
must be effective in all operating modes of the 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 a 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 6130-02a
Installation Guidelines
3-5