SMA SI 3.0-11 User Manual
Page 116

13 Directory of the Parameters in Installer Mode and Expert Mode
SMA Solar Technology AG
116
SI30M-44M-60H-80H-BE-en-30
Operating Manual
241.01 Rly1Op Multifunction
relay 1 function
(continued)
ExtPwrDer
The Sunny Island controls additional
loads in order to put excess energy to
practical use. When excessive energy
can be used, the multifunction relay is
activated.
✓ ✓ AutoGn
GnRn
When the generator is running and
connected, the multifunction relay is
activated.
ExtVfOk
When the voltage and frequency of
the external energy source are within
the valid range for the connection, the
multifunction relay is activated.
GdOn
When the utility grid is connected, the
multifunction relay is activated.
Error
When an error message is pending,
the multifunction relay is deactivated.
Warn
When a warning is pending, the
multifunction relay is activated.
Run
When the Sunny Island or the cluster
is in operation, the multifunction relay
is activated.
BatFan
The Sunny Island controls the battery
room fan. When the battery room is
to be ventilated, the multifunction
relay is activated.
AcdCir
The Sunny Island controls the
electrolyte pump of the battery. When
the electrolyte is to be circulated, the
multifunction relay is activated.
MccBatFan
The Sunny Island controls the battery
room fan for all clusters together.
When the battery room is to be
ventilated, the multifunction relay is
activated.
MccAutoLod
1-level load shedding
When all batteries have reached the
upper SOC threshold, the
Sunny Island ends load shedding.
When the loads are to be shed, the
multifunction relay is deactivated.
CHPReq
No function
CHPAdd
No function
No.
Name
Description
Value
Explanation
Default
value