User Manual
6 Electrical Connection
49
RJ45 Connection
Step 1
Remove the threaded plastic plug from the AC cable knockout and replace
with a conduit hub sized to fit the required wiring and raceway.
Step 2
Lead Network cable through conduit opening to the configuration circuit
board.
Step 3
Use the Ethernet crimper to crimp the cables and connect cables to RJ45
plug according to TIA/EIA 568B.
Step 4
Connect the RJ45 plug into the RS485 in/RS485 out terminal on the
configuration circuit board.
Step 5
According to the position of the inverter (refer to the prior section), repeat
step1…3 to connect the other Network cables to the RS485 out/RS485 in
terminal on the configuration circuit board.
Step 6
Pull cables outwards to confirm whether they are fastened firmly.
Step 7
According to the position of the inverter (refer to the prior section) switch ON
or OFF the terminating resistor.
Step 8
If there is no other connection procedure, recover and fix the front cover of
the combiner unit.
Step 9
As for the wires which connect to the logging devices, use the Ethernet wire
stripper to strip the insulation layer and connect the RS485 A and B cables (3
and 6) to data logging device or RS485-232 converter. Communication
terminal definition is referred to the device manual.
Step 10
Verify the communication connection and configure the
communication parameters.
SolarInfo logger and RS485-232 converter are optional parts and can be
ordered from Sungrow.
