Installation Guide

NOTE
If a revenue grade meter is connected to your inverter, it uses the RS485 port and
therefore an RS485 communication bus cannot be created.
ThefollowingsectionsdescribehowtophysicallyconnecttheRS485busandhowtoconfigure
thebus.
To connect the RS485 communication bus:
1. RemovetheinvertercoverasdescribedinRemoving the Inverter Coveronpage73
2. Removethesealfromoneoftheopeningsincommunicationgland#2andinsertthewire
throughtheopening.
3. Pulloutthe9-pinRS485/RS232terminalblockconnector,asshownbelow:
Figure 38: The RS485 terminal block
4. LoosenthescrewsofpinsA(+),B(-),andGontheleftoftheRS485terminalblock.
Figure 39: RS485/RS232 terminal block
5. InsertthewireendsintotheG, AandBpinsshownabove.UseFour-orsix-wiretwisted
paircableforthisconnection.YoucanuseanycolorwireforeachoftheA,BandG
connections,aslongasthesamecolorwireisusedforallApins,thesamecolorforallB
SolarEdge-Installation Guide MAN-01-00002-4.0
78
Creating an RS485 Bus Connection