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Safety instructions
2.1
General safety instructions
Life-threatening voltages are present with an open control cabinet
When you install the device in a control cabinet, some areas or components in the open
control cabinet might be carrying life-threatening voltages.
If you touch these areas or components, you might be killed by electric shock.
Switch off the power supply to the cabinet before opening it.
The installer of the system is responsible for the safety of a system in which the device
is integrated
There is a risk of malfunction which could result in death or serious injury.
• Ensure that only suitably qualified personnel perform the work.
The equipment is designed for operation with Safety Extra-Low Voltage (SELV) or
Protective Extra-Low Voltage (PELV).
This means that electrical circuit in which the voltage cannot exceed 30 V AC (RMS), 42.4 V
AC peak or 60 V DC under NORMAL CONDITIONS and CONDITIONS OF A SINGLE FAULT,
including ground faults in other circuits.
System expansions
NOTICE
Damage through system expansions
Device and system expansions might be faulty and can affect the entire machine or plant.
The installation of expansions can damage the device, machine or plant. Device and system
expansions can violate safety rules and regulations regarding radio interference
suppression. If you install or exchange system expansions and damage your device, the
warranty becomes void.
14
WARNING
WARNING
WARNING
Operating Instructions, 09/2021, A5E51366275-AA
2
SIMATIC IPC327G
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