Important Notes On Using The Device - Siemens LOGO! CIM Operating Manual

Security

3.3 Important notes on using the device

3.3 Important notes on using the device
The following safety notices must be adhered to when setting up and operating the device
and during all associated work such as installation, connecting up or replacing devices.
NOTICE
Open Equipment
When the device is used in the area of Industrial Control Equipment in accordance with
UL61010-2-201, the device is classified as "Open equipment".
Open equipment must be installed within an enclosure which protects you from hazards,
including mechanical hazards, electrical shock and spread of fire.
Note
Cleaning CIM
Requirement: The supply voltages on the CIM is switched off.
If you need to clean the devices, use dry ESD cleaning cloths (observing the ESD protective
measures).
Overvoltage protection
NOTICE
Protection of the external power supply
If power is supplied to the module or station over longer power cables or networks, the
coupling in of strong electromagnetic pulses onto the power supply cables is possible. This
can be caused, for example by lightning strikes or switching of higher loads.
The connector of the external power supply is not protected from strong electromagnetic
pulses. To protect it, an external overvoltage protection module is necessary. The
requirements of EN61000-4-5, surge immunity tests on power supply lines, are met only
when a suitable protective element is used. A suitable device is, for example, the Dehn
Blitzductor BVT AVD 24, article number 918 422 or a comparable protective element.
Notices on use in hazardous areas
Note
• The equipment shall only be used in an area of pollution degree 2, as defined in IEC/EN
60664-1.
• The equipment shall be installed in an enclosure that provides a minimum ingress
protection of IP 54 in accordance with IEC/EN 60079-0.
• Transient protection shall be provided that is set at a level not exceeding 140 % of the
peak rated voltage value at the supply terminals to the equipment.
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Operating Manual, 10/2021, A5E51250518-AA
LOGO! CIM