FC 300 Operating Instructions
Safety Instructions and General Warning
General warning
130BA024.10
Warning:
Touching the electrical parts may be fatal - even after the
equipment has been disconnected from mains.
Also make sure that other voltage inputs have been
disconnected, such as load-sharing (linkage of DC intermediate
circuit), as well as the motor connection for kinetic back-up.
Using VLT AutomationDrive FC 300 (at and below 7.5 kW):
wait at least 4 minutes
Leakage Current
The earth leakage current from the frequency converter
exceeds 3.5 mA. To ensure that the earth cable has a good
mechanical connection to the earth connection (terminal 95),
the cable cross section must be at least 10 mm
2
/
6 AWG or 2 rated earth wires terminated separately.
Residual current device
This product can cause a D.C. current in the
protective conductor. Where a residual current
device (RCD) is used for extra protection, only
an RCD of Type B (time delayed) shall be used
on the supply side of this product. See also RCD
Application Note MN.90.GX.02.
Protective earthing of the FC 300 and the use
of RCD’s must always follow national and local
regulations.
8
MG.33.A2.02 - VLT is a registered Danfoss trademark