2-27
H Ground Wiring
• Always
use the ground terminal of the 200-V Inverter with a ground resistance of less than 100
Ω
and
that of the 400-V Inverter with a ground resistance of less than 10 Ω.
• Do not share the ground wire with other devices such as welding machines or power tools.
• Always use a ground wire that complies with technical standards on electrical equipment and mini-
mize the length of the ground wire.
Leakage
current flows through the Inverter
. Therefore, if the distance between the ground electrode
and
the ground terminal is too long, potential on the ground terminal of the Inverter will become unsta
-
ble.
• When using more than one Inverter, be careful not to loop the ground wire.
Installation Chapter 2