Installing and connecting the device
3.3 Connecting the device
SIMATIC IPC RW-543A
38 Operating Instructions, 03/2023, A5E52332059-AA
3.3.2 Connecting the function earth
A connected function earth discharges electrical charges from the metal enclosure.
The function earth also improves the discharge of interference generated by external power
cables, signal cables or cables for I/O modules to ground.
The connection for the function earth is labeled with the following symbol:
You can find information on the position of the functional earthing connection under "Rear of
the device (Page 12)".
Requirement
• PH2 screwdriver
• Cable lug for M4
• Function earth with minimum cross-section of 2.5 mm
2
copper cable
Procedure
1
2
3
Clamp the cable lug on the
function earth.
Firmly attach the cable lug to the function earth connection on the
device using the M4 thread (see part labeled).
Connect the function earth to the protective conductor connection of
the cabinet or the plant in which the device is installed.
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