User Manual
6 Electrical Connection
45
communication cable and RJ45 plug (may not supplied with inverter). Meanwhile
there are waterproof communication connectors supplied in the scope of delivery,
to guarantee inverter protection degree.
Lighting protection is recommended to the communication cables when
installing this device in thunderstorm-prone areas.
RS485 cable’ requirements to ensure the quality of communication:
y
Shielding Ethernet cable
y
Twist-pair type cable
A converter such as RS485-232 converter or SolarInfo Logger, which
converts 485 to 232 signal, is needed between inverter and PC.
6.6.2 Communication System
For Single Inverter
Where there is only one inverter, a RS485 cable with RJ45 connector enables
connection between inverter and PC.
If the communication distance is more than 100m, the communication system must
be terminated with a resistor of 120 Ω.
Fig. 6-6
One Inverter Connected to PC or SolarInfo Logger
For Multiple Inverters
Where there is more than one inverter, all inverters can be connected to PC in daisy
chain. The first inverter in the chain must be terminated with a resistor of 120 Ω. The
