TC500K3US-O Installation Instructions
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The Photovoltaic System Grounding shall be installed per the
requirements of Sections 690.41 through 690.47 of the National Electrical
Code, ANSI/NFPA 70 and is the responsibility of the installer.
8.9 Communication Wiring
TC500K3US-O inverters in parallel apply RS485 serial communication.
Terminals have been reserved inside of inverter. The position of the
communication terminals are shown in Figure 8-10.
Figure 8-10 Schematic diagram of communications wiring
Items
Name
A
Connection port of external power supply
B
Connection port of 485 communication line
Apply a shielded twisted cable for RS485 communication cable;
The RS485 connector is located on the bottom of the AC inverter cabinets.
Use the shielded twisted wire leads communication cable from the outside
