Wiring Connection on the Inverter
Wiring Connection on the Inverter
72
8.3 Ground Connection
Please additionally earth the inverter to the enclosure of a second earthing
or equipotential bonding if it is required by local safety. This prevents electric
shock if the original protective conductor fails.
Ground terminals are as follows. Terminals on bus-bar A and B are for AC and
DC ground connection. Ground terminal C is for ground connection between
inverter and battery
Ÿ
Steps of Ground Connection
A
B
Ÿ
Ground terminal
a) Strip the insulation of conductor by wire stripper;
b) Pull the heat-shrink tubing over the PE cable and insert the stripped
section into the grounding terminal;
For the specific requirement of power cable, please refer to “Appendix A: Wiring
and Breaker Requirement”.
.
c) Crimp it with crimping tool, pull the heat-shrink tubing over the
stripped section of the grounding terminal and use a hot-air blower to shrink it
so that it can be firmly contacted with the terminal;
d) Connect the ground cable to the inverter and fix it wit M4 screw.
When PV connection, please connect the ground cable to B bus-bars.
When grid connection, please connect the ground cable to A bus-bars.
e) Connect the ground cable between the inverter and battery with M5
screws. For easier connection, please connect the grounding cable on the BMS
first.
C
B=A+(2~3 mm)
A
C=B+2 cm
Heat-shrink tubing
a
b
c
M5
17.7 lbf.in /
2.0 N·m
F G
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