Mounting and connecting the HMI device
4.4 Connecting the device
SIMATIC IPC477E PRO
Operating Instructions, 08/2017, A5E39912462-AA
43
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.
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