SOLIS S6 - Page 10

Step 6: Use a multimeter to measure the DC input voltage and verify the polarity of the
DC input cable.
+
-
Figure 4.11 multi-meter measurement
Step 7: Connect the assembled DC terminal to the inverter as shown in the figure, and a
slight "click" will be heard, proving that the connection is correct.
Figure 4.12 connect to the inverter
Click
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.
4. Installation4. Installation
4.3.2 Connect grid side of inverter
The steps to assemble the AC grid terminal connectors are listed as follows:
For all AC connections, the cables with 4-10mm diameter are required to be used.
2
Please make sure the resistance of cable is lower than 1 ohm.
Figure 4.14
1. Flee the sleeve into the cable.
There are"L","N","PE"symbols marked inside the connector, the Line
wire of grid must be connected toLterminal, the Neutral wire of grid must
be connected to "N" terminal and Earth wire must be connected to "PE".
WARNING:
Disassemble the AC connector. Strip the AC wires about 13mm.
Figure 4.13 Stripped AC Wires
Outside-diameters
12~18mm
53mm
PE
L
N
x=13mm
x
Cross-section
4~10mm²
4-10mm²
Cable type
Cross section（mm²）
Range
Industry generic
grid cable
Recommended value
Table 4.3 Grid cable size
6mm²
.17..16.