Connection Options - SMA SUNNY BOY 3.0-US Instrucciones De Instalación

SMA Solar Technology AG
Operating mode of multi-
function relay (Mlt.Op-
Mode)
Fan control (FanCtl)
Switching status grid re-
lay (GriSwCpy)
6.4.3

Connection Options

The connection procedures vary, depending on the operating mode.
Operating mode
Fault indication (FltInd)
Self-consumption (SelfC-
smp)
Control via communica-
tion (ComCtl)
Battery bank (BatCha)
Fan control (FanCtl)
Switching status grid re-
lay (GriSwCpy)
Installation Manual
Description
The multifunction relay controls an external fan, depending on the
temperature of the inverter.
The local grid operator may require that a signal is transmitted as
soon as the inverter connects to the utility grid. The multifunction re-
lay can be used to trigger this signal.
Connection option
Using the Multifunction Relay as a Fault Indicator Contact
Controlling loads via the multifunction relay or charging batteries de-
pending on the power production of the PV system
Controlling loads via the multifunction relay or charging batteries de-
pending on the power production of the PV system
Controlling loads via the multifunction relay or charging batteries de-
pending on the power production of the PV system
Connecting the external fan (see fan documentation)
Reporting the switching status of the grid relay
6 Electrical Connection
SBxx-1SP-US-41-IA-xx-10 37