4. Installation4. Installation
Figure 4.6 DC+ Connector Figure 4.7 DC- Connector
Please use approved DC cable for PV system.
4.0~6.0
4.0（12AWG）
（12~10AWG）
Cable type
Cross section（mm²）
Range
Industry generic PV cable
（model:PV1-F）
Recommended value
The steps to assemble the DC connectors are listed as follows:
1. Strip off the DC wire for about 7mm, Disassemble the connector cap nut. (see Figure 4.8)
3. Crimp the contact pin to the wire using a proper wire crimper. (see Figure 4.10)
2. Insert the wire into the connector cap nut and contact pin. (see Figure 4.9)
4. Insert the contact pin to the top part of the connector and screw up the cap nut to
the top part of the connector .(see figure 4.11).
Figure 4.8
Disassemble the Connector Cap nut
Figure 4.9 Insert the Wire into the
Connector Cap nut and contact pin
5. Then connect the DC connectors to the inverter. Small click will confirm connection.
(see figure 4.12)
Figure 4.10
Crimp the contact pin to the wire
Figure 4.11
Connector with Cap nut Screwed on
Crimping plier
Figure 4.12 Connect the DC Connectors to the Inverter
.14. .15.
CAUTION:
If DC inputs are accidently reversely connected or inverter is faulty or not
working properly, it is NOT allowed to turn off the DC switch. Otherwise it may
cause DC arc and damage the inverter or even lead to a fire disaster.
The correct actions are:
*Use a clip-on ammeter to measure the DC string current.
*If it is above 0.5A, please wait for the solar irradiance reduces until the
current decreases to below 0.5A.
*Only after the current is below 0.5A, you are allowed to turn off the DC
switches and disconnect the PV strings.
* In order to completely eliminate the possibility of failure, please disconnect
the PV strings after turning off the DC switch to aviod secondary failures due
to continuous PV energy on the next day.
Please note that any damages due to wrong operations are not covered in
the device warranty.
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