SMA SUNNY ISLAND 3.0M Operating Manual page 70

10 Troubleshooting
No. Name
F 720 InvTmpSns
F 721 InvTmpSns
W 722 BatTmpSnsShort
W 723 BatTmpSnsOpn
W 724 AutoStrCntSlv1
W 725 AutoStrCntSlv2
F 731 ClstConfig
F 733 MstrLoss
W 734 Slv1Loss
W 735 Slv2Loss
F 737 BootUpdateFail
70 SI30M-44M-60H-80H-BE-en-33
Level Cause
4 Short circuit or cable break on
the temperature sensor of the
transformer L1 (Master).
4 Short circuit or cable break on
the temperature sensor of the in-
verter bridge L1 (Master).
1 Short circuit on battery tempera-
ture sensor
1 Cable break on battery temper-
ature sensor
1 Autostart meter elapsed in
the device at L2: Maximum
number of autostarts for slave 1
has been reached.
1 Autostart meter elapsed in
the device at L3: Maximum
number of autostarts for slave 2
has been reached.
4 Error in the cluster configuration
4
No message from Master
(only slave): Communication
with the Master is interrupted.
1
No message from device to
L2: Communication from the
Master to slave 1 is interrupted.
1
No message from device to
L3: Communication from the
Master to slave 2 is interrupted.
4 Updating of the boot loader
failed.
SMA Solar Technology AG
Corrective measures
• Contact the Service (see Section 16
"Contact", page 161).
• Contact the Service (see Section 16
"Contact", page 161).
• Ensure that the battery temperature
sensor is correctly connected (see
the Sunny Island inverter installation
manual).
• Contact the Service (see Section 16
"Contact", page 161).
• Read off the pending and logged
warnings and errors and eliminate
the causes.
• Ensure that the parameter 250.01
AutoStr is set to 3.
• Change the addresses of the slaves
in the cluster (see Section 10.8,
page 91)
• 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.
• Contact the Service (see Section 16
"Contact", page 161).
Operating Manual