Siemens SIMATIC S7-300 Instrucciones De Servicio Resumidas página 9

WARNING
Danger from voltage/current!
Only perform assembly and disassembly work when the device is de-energized.
Only install products with IP20 degree of protection according to IEC 60529 in enclosures, cabinets or electrical operating
rooms suitable for the end application.
WARNING
Safety functional extra low voltage
The product must be operated with safety functional extra low voltage (SELV, PELV). You can find more information on
safety functional extra low voltage in the documentation (https://support.industry.siemens.com/cs/ww/en/view/109744173)
of the fail-safe I/O and in the data sheets of the power supplies to be used.
Use a power supply unit with output voltage that does not exceed 36 V DC even in the event of a fault.
Follow the notes and warnings in the respective manual.
Electromagnetic Compatibility
The product is intended for operation in the Industrial EMC environment class.
Ensure that your automation system is installed in compliance with EMC requirements, as described in the documentation
(https://support.industry.siemens.com/cs/ww/en/view/109744173) for the product.
NOTICE
Interference emission / Interference immunity
Operation of the product can cause radio interference in residential areas.
If higher EMI is expected at the place of use than is intended for the industrial area according to EN61000-6-2, additional
measures are required (e.g. ESD, overvoltage protection).
ATEX-/UKEX device intended for use in hazardous area
If the product is intended for use in a potentially explosive atmosphere (gas/air or gas/dust mixture), observe the special
information in the documentation (https://support.industry.siemens.com/cs/ww/en/view/109744173). The intended use (e.g.
ATEX zone, degree of protection, temperature class) is indicated on the product (in the declaration of conformity and usually
also on the nameplate).
Note
As a rule, country-specific requirements for the operator also apply when a product is used in a potentially explosive
atmosphere (e.g. Directive 1999/92/EC for the EU).
Cleaning
If you need to clean the product, use dry ESD cleaning cloths (observing the protective measures for ESD).
Requirement: All available supply voltages on the distributed I/O system and I/O modules are switched off. Observe the five
safety rules for working in and on electrical installations.
Maintenance and repair
The product is maintenance-free. Repairs to the product may only be carried out by the manufacturer.
Recycling and disposal
For environmentally sustainable recycling and disposal of your electronic waste, contact a company certified for the disposal
of electronic waste. Dispose of the product in accordance with the applicable regulations in your country.
Accessories
You can find information on the approved accessories in the documentation
(https://support.industry.siemens.com/cs/ww/en/view/109744173).
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Automation system S7-300/ET 200M
A5E51784865-AA, 03/2022