Installation Guide

6.
ForcreatinganRS485bus-connectallB,AandGpinsinallinverters.Thefollowingfigureshowsthis
connectionschema:


Figure 30: Connecting the inverters in a chain
NOTE
Donotcross-connectB,AandGwires.
7. Tightentheterminalblockscrews.
8. Checkthatthewiresarefullyinsertedandcannotbepulledouteasily.
9.
PushtheRS485terminalblockfirmlyallthewayintotheconnectorontherightsideofthe
communicationboard.
10.
TerminatethefirstandlastSolarEdgedeviceinthechainbyswitchingaterminationDIP-switchinside
theinvertertoON(movetheleftswitchup).Theswitchislocatedonthecommunicationboardand
ismarkedSW2.

Figure 31: RS485 termination switch
NOTE
OnlythefirstandlastSolarEdgedevicesinthechainshouldbeterminated.Theotherinvertersin
thechainshouldhavetheterminationswitchOFF(downposition).
11. Ifnotusingsurgeprotection,connectthegroundingwiretothefirstinverterintheRS485chain;
makesurethegroundingwireisnotincontactwithotherwires.ForinverterswithaDCSafetyUnit,
connectthegroundingwiretothegroundingbus-barintheDCSafetyUnit.
Single Phase Inverter with HD-Wave Technology Installation MAN-01-00306-1.1
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Creating an RS485 Bus Connection