3. Installation
3. Installation
.19.
.18.
D
C
Figure 3.16 Strip wire
Important:
After crimping the terminal to the wire, inspect the connection to ensure the
terminal is solidly crimped to the wire.
5) Remove the screw from the heat sink ground point.
Figure 3.17 Fixed cable
For improving anti-corrosion performance,
after ground cable installed, apply silicone or paint.
Important:
6) Connect the grounding cable to the grounding point on the heat sink, and tighten the
grounding screw, Torque is 10 - 12 Nm(see figure 3.17).
4) Insert the stripped wire into the OT terminal crimping area and use the hydraulic
clamp to crimp the terminal to the wire (see Figure 3.16).
3.4.1 Grounding
2) Prepare OT terminals: M10.
To effectively protect the inverter, two grounding methods must be performed.
Connect the AC grounding cable (Please refer to section 3.4.3)
Connect the external grounding terminal.
1) Prepare the grounding cable: recommend to use the outdoor copper-core cable. The
grounding wire should be at least half size of the hot wires.
To connect the grounding terminal on the heat sink, please follow the steps below:
A
B
Important:
3) Strip the ground cable insulation to a suitable length(see Figure 3.15).
Figure 3.15 Suitable length
Important:
For multiple inverters in parallel , all inverters should be connected to the
same ground point to eliminate the possibility of a voltage potential existing
between inverter grounds.
B (insulation stripping length) is 2 mm ~ 3 mm longer than A (OT cable
terminal crimping area) .
Grounding
Screw
Torque
：
10 - 12 Nm
