SMA SUNNY ISLAND 6.0H - Battery Voltage and Sensor Errors

9 Troubleshooting SMA Solar Technology AG
56 SI60H-80H-BE-en-20 Operating Manual
F 716 VBATMIN 2 The measured battery voltage of the
master is below the permissible
measurement range.
• Disconnect the DC loads and
charge the battery.
The usable battery capacity may be too
small, e.g. due to aging. If a load with
high power connects, the battery
voltage collapses.
•
If DC loads are installed in the
system, install load shedding for
DC loads.
•
Ensure that all battery cells are
functional.
W 717 VBATMINSL1 1 The measured battery voltage of
slave 1 is below the permissible
measurement range.
W 718 VBATMINSL2 1 The measured battery voltage of
slave 2 is below the permissible
measurement range.
F 720 InvTmpSns 4 The temperature sensor on the
transformer of the master is defective.
• Contact the SMA Service Line.
F 721 InvTmpSns 4 The temperature sensor on the heat
sink of the master is defective.
• Contact the SMA Service Line.
W 722 BatTmpSnsShort 1 Short circuit of the battery
temperature sensor
•
Ensure that the battery temperature
sensor is correctly connected (see
installation manual of the
Sunny Island).
• Contact the SMA Service Line.
W 723 BatTmpSnsOpn 1 Cable break in battery temperature
sensor
W 724 AutoStrCntSlv1 1 Maximum number of autostarts for
slave 1 has been reached.
•
Read off the pending and logged
warnings and errors and eliminate
the causes.
• Ensure that the parameter 250.01
AutoStr is set to 3.
W 725 AutoStrCntSlv2 1 The maximum number of autostarts
for slave 2 has been reached.
F 731 ClstConfig 4 Configuration of the cluster is
incorrect.
•
Change the addresses of the
slaves in the cluster (see
Section9.7, page71)
F 732 ClstAdress 4 Error in the address assignment of the
Sunny Island in the cluster.
•
Ensure that undamaged CAT5e
cables are used for communication
and that the cables are plugged in
correctly.
•
Ensure that the communication bus
is equipped with a terminator at
both ends.
•
Reset the address of the Sunny
Island inverters in the cluster (see
Section 9.7, page71).
No. Name Level Cause Corrective measures