SMA SUNNY ISLAND 3.0M Operating Manual page 82

10 Troubleshooting
No. Name
W 885 Sic4TmpLo
W 886 Sic4TmpHI
W 887 Sic4ComLoss
W 890 BoxMeas
W 891 BoxMeasSlv1
W 892 BoxMeasSlv2
F 894 BoxQ10LdScFail
82 SI30M-44M-60H-80H-BE-en-33
Level Cause
1 Sensor error (or undertem-
perature) for the PV charge
controller 4 charger temper-
ature: Sunny Island Charger 4
reports battery undertempera-
ture.
1 PV charge controller 4 de-
vice overtemperature: Sun-
ny Island Charger 4 reports bat-
tery overtemperature.
1 No communication with DC
charger for more than 24 h
– PV charge controller 4: Last
communication with the Sun-
ny Island Charger 4 was more
than 24 hours ago.
2 Voltage or current measurement
interferences at external mea-
surement point of the AC sub-
distribution (Multicluster-Box) at
line conductor L1 (Master)
2 Voltage or current measurement
interferences at external mea-
surement point of the AC sub-
distribution (Multicluster-Box) at
line conductor L2 (slave 1)
2 Voltage or current measurement
interferences at external mea-
surement point of the AC sub-
distribution (Multicluster-Box) at
line conductor L3 (slave 2)
4
Q10 error: The voltage supply
of Q10/Q110 fails due to a
short circuit in the stand-alone
grid.
SMA Solar Technology AG
Corrective measures
• Set the Sunny Island Charger to the
operating mode "SMA
operation" (see the Sunny Island
Charger charge controller
installation manual).
• Ensure that undamaged CAT5e
cables are used for communication
and that the cables are plugged in
correctly.
• Ensure that the configuration of the
Sunny Island Charger charge
controller with the DIP switches is
correct.
• Ensure that the communication
interfaces are correctly inserted in
the Sunny Island.
• Ensure that the control and
measuring cable between the
Multicluster-Box and the
corresponding Sunny Island of the
main cluster is correctly inserted.
When doing so, observe the correct
sequence of the Multicluster-Box
connections to the Sunny Island
inverters (see the Sunny Island
inverter installation manual and the
Multicluster-Box documentation).
• Eliminate the short circuit.
Operating Manual