Installing and connecting the device
3.3 Connecting the device
SIMATIC IPC327G
Operating Instructions, 09/2021, A5E51366275-AA
27
Do not connect function earth to hazardous live parts.
Electric shock and risk of fire
High voltage may be present in a defective device, which can cause fire or an electric shock
if touched. This can result in death and serious injury.
• Connect the device to the function earth before you put it into operation.
• The FE terminal on the device must be connected to the function earth of the control
cabinet or system in which the device is installed.
• Never operate the device without function earth.
• If a device is defective, remove it from operation without delay and label it accordingly.
The external bonding facility should provide effective connection of a conductor with a cross
sectional area of at least 4 mm
2
Requirements
• T20 screwdriver
• Tightening torque: 1 Nm
• Cable lug for M4
• function earth with minimum cross-section of 2.5 mm
2
(AWG14)
Procedure
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 function earth connection
of the cabinet or the plant in which the device is installed.
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