Safety instructions
2.1 General safety instructions
40 Operating Instructions, 01/2021, A5E43920357-AA
Risk of electric shock when working on the device
Risk of electric shock from mains voltage
The on/off button and on/off switch do not fully disconnect the device from the mains.
There is also a risk of fire if the device or connecting lines are damaged.
• Always fully disconnect the device from the mains voltage before performing work on
the device or when the device will not be used over an extended period of time.
Shut down the operating system.
Then pull out the mains plug or operate the central AC circuit breaker when installing in
a control cabinet.
Therefore, when installing the device in a control cabinet, ensure that the AC circuit
breaker is easily accessible.
Risk due to strong high-frequency radiation
Observe immunity to RF radiation
The device has increased immunity to high-frequency radiation in accordance with the
information on electromagnetic compatibility (Page 149).
Radiation exposure exceeding the specified immunity limits can impair device functions,
result in malfunctions and therefore injuries or damages.
Note the information on immunity to high-frequency radiation.
Danger in case of lightning strike
Danger in case of lightning strike
A lightning flash may enter the mains cables and data transmission cables and jump to a
person.
Death, serious injury and burns may result.
• In the event of an approaching thunderstorm, completely disconnect the device from the
mains voltage in good time, see "Switching off the device (Page 72)".
• Do not touch power cables and data transmission cables during a thunderstorm.
Keep sufficient distance from electric cables, distributors, systems, etc.
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