Figure 2.2: Illustration of the essential aspects of an installation to achieve a Stopping Category 0 (EN 60204-1) with safety Category 3 (EN 954-1).
2.1.8 IT Line Power
Par. 14-50
RFI 1
can be used to disconnect the internal RFI capacitors from the RFI filter to ground in the 380-500 V adjustable frequency drives. If this
is done, it will reduce the RFI performance to A2 level. For the 525-690 V adjustable frequency drives, par 14-50 has no function. The RFI switch cannot
be opened.
2 Safety Instructions and General Warning
VLT
®
Automation Drive FC 300
Instruction Manual High Power
2-6
MG.33.U2.22 - VLT
®
is a registered Danfoss trademark
2