Danfoss FC 300 Design Manual page 65

FC 300 Design Guide
FC 300 Selection
Control card, USB serial communication:
USB standard .......................................................................................................... 1.1 (Full speed)
USB plug .................................................................................................... USB type B "device" plug
Connection to PC is carried out via a standard host/device USB cable.
The USB connection is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
The USB connection is not galvanically isolated from protection ground. Only use an isolated
laptop as a PC connection to the USB connector on the FC 300 drive.
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MG.33.B6.22 - VLT is a registered Danfoss trademark