Hitachi hitachi series inverter Welding System User Manual


 
91
Installation for WJ200 series (example of SF models)
Model LFx (3-ph. 200V class) and HFx (3-ph. 400V class) are the same concept for the
installation.
*) Both earth portions of the shielded cable must be connected to the earth point by cable clamps.
Input choke or equipment to reduce harmonic current is necessary for CE marking (IEC
61000-3-2 and IEC61000-3-3) from the harmonic current point of view, even conducted
emission and radiated emission passed without the input choke.
Shielded cable
Power supply
1-ph. 200V
M
U,V,W
Metal plate (earth)
Earth line is connected to the
heatsink of the inverter
(
or PE terminal for bi
gg
er models
)
PE
EMC filter
(Foot-print)
Cable clamp *
The filter is a footprint type, so it is located
between the inverter and the metal plate.
Remove the insulation material coating of the
earth contact portions so to obtain good
g
roundin
g
condition.
Cable clamp *
Metal plate (earth)
L1,N