Installing and connecting the device
3.3 Connecting the device
SIMATIC IPC547G
46 Operating Instructions, 04/2020, A5E49948632-AA
Operation only in TN networks
The device is designed exclusively for operation on grounded power supply systems (TN
networks per VDE 0100 Part 100 or IEC 60364-1). Operation with non-grounded or
impedance-grounded systems is not permitted.
The permitted nominal voltage of the device must conform with local mains voltage.
I/O devices
Fault caused by I/O devices
The connection of I/O devices can cause faults in the device. The result may be personal
injury and damage to the machine or plant. Note the following:
• Connect only I/O devices which are approved for industrial applications in accordance
with EN 61000-6-2/IEC 61000-6-2.
• Non-hot-plug capable I/O devices may only be connected when the power supply to the
device is switched off.
Damage through regenerative feedback
Regenerative feedback of voltage to ground by a connected or installed component can
damage the device.
Connected or built-in I/Os, for example, a USB drive, are not permitted to supply any
voltage to the device. Regenerative feedback is generally not permitted.
See also
Switching off the device (Page 63)
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