2-11
Opening to access
Ground Terminal
WARNING
z Use the Type 3 grounding method (Ground impedance: Below 100Ω) for 230V class
inverters.
z Use the Special Type 3 grounding method (Ground impedance: Below 10Ω) for 460V class
inverters.
z Use the dedicated ground terminal to ground the inverter. Do not use the screw in the case
or chassis, etc for grounding.
Note
Grounding procedure
1) Remove the front cover.
2) Connect the Grounding wire to the ground terminal through the opening for
ground terminal as shown above. Enter the screw driver from vertical to the
terminal and secure the screw tightly.
Note Grounding work guidance
Inverter capacity
200V Class 400V Class
Wire size Terminal screw Wire size Terminal screw Wire size Terminal screw
0.4~4.0 kW 3.5 mm
2
M3
Type 3
2.0 mm
2
M3
Special Type
3
5.5~7.5 kW 5.5 mm2 M4 3.5 mm2 M4
11 ~ 15 kW 14.0 mm2 M5 8.0 mm2 M5
18.5~22 kW 22.0 mm2 M6 14.0 mm2 M5
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