Mounting - Siemens SINUMERIK 840DE sl Manual

Mounting

Electric shock in the event of an individual error when grounding is insufficient
If the panel is installed with inadequate grounding in an environment with hazardous voltages,
this may cause an electric shock in the event of an individual error. This can result in death,
serious injury and material damage.
Adequately ground the conductive parts of the panel in accordance with the nationally
applicable regulations. When dimensioning the protective conductor connection, note the fuse
ratings of the electrical circuits with hazardous voltages, which would have an effect in
possible individual error scenarios.
Unexpected machine movements caused by defective grounding
A defective or non-existent ground connection can lead to malfunction of the touch screen.
The malfunction can trigger an unexpected machine movement, or a machine movement can
no longer be stopped.
Ground the touch screen with the shortest possible cable with a minimum conductor cross-
section of 2.5 mm².
Parasitic voltage
If the device is installed with inadequate insulation in an environment with higher/more
hazardous voltages, parasitic voltages may occur. This can result in death, serious injury and
material damage.
Insulate the cables appropriately for the highest voltage coming into consideration.
The safety of a system with an integrated operator panel front is the responsibility of the system
installer.
The installation is performed in accordance with the installer's instructions.
Observe all the relevant information from this manual regarding installation.
Operator panel front: OP 015 black
Manual, 05/2019, A5E35227814B AB
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