SMA America, LLC
Relays
Technical Description
SI5048U-TUS121440
137
GdOn
Public grid
Relay switching when public grid is
available and connected.
Error
Error
Sunny Island has a fault; in case of
fault, contact is open (relay is
deactivated).
Warn
Warning
The Sunny Island has warning
pending.
Run
Run
Sunny Island is in operation, contact is
closed (relay is activated) if the device
is running in inverter operation.
BatFan
Battery fan
Relay is used for automatic battery
room ventilation (switching the fan).
AcdCir
Acid circulation
Relay is used for automatic acid
circulation (switching the electrolyte
pump).
MccBatFan
Multicluster Battery Fan
Relay is used for automatic battery
room ventilation (switching the fan).
MccAutoLod
Multicluster Auto Loadshedding
Automatic disconnection of loads
through an extension cluster in the
Multicluster system.
CHPReq
CHP plant request
Request of the CHP plant through the
CHP plant control.
CHPAdd
Request additional CHP plant
Request of additional CHP plant
through the CHP plant control.
SiComRemote
Remote control via SI Com module.
The relay can be controlled remotely
via the SI Com module.
Overload
Overload
When applying the power limit of the
Sunny Island (temperature-dependent)
the relay will open.
Function/Setting Meaning
Function description