WARNING
Spread of re from built-in devices
In the event of re outbreak, the enclosures of built-in devices cannot prevent the escape of
re and smoke. This can result in serious personal injury or property damage.
• Install built-in units in a suitable metal cabinet in such a way that personnel are protected
against re and smoke, or take other appropriate measures to protect personnel.
• Ensure that smoke can only escape via controlled and monitored paths.
WARNING
Unexpected movement of machines caused by radio devices or mobile phones
Using radio devices or mobile telephones in the immediate vicinity of the components can
result in equipment malfunction. Malfunctions may impair the functional safety of machines
and can therefore put people in danger or lead to property damage.
• Therefore, if you move closer than 20 cm to the components, be sure to switch o radio
devices or mobile telephones.
• Use the "SIEMENS Industry Online Support app" only on equipment that has already been
switched o.
WARNING
Fire due to inadequate ventilation clearances
Inadequate ventilation clearances can cause overheating of components with subsequent re
and smoke. This can cause severe injury or even death. This can also result in increased
downtime and reduced service lives for devices/systems.
• Ensure compliance with the specied minimum clearance as ventilation clearance for the
respective component.
NOTICE
Overheating due to inadmissible mounting position
The device may overheat and therefore be damaged if mounted in an inadmissible position.
• Only operate the device in admissible mounting positions.
Fundamental safety instructions
2.1 General safety instructions
Machine Pushbutton Panel: MPP 464 IE H
Equipment Manual, 03/2021, A5E50810237B AA 13
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