SMA SUNNY ISLAND 3.0M, Operating Manual

Page: 72 / 164

No. Name Level Cause Corrective measures
W 753 DateInvalid 1 Invalid date : System time is in-
valid.
• Select the parameter 250.02 Dt
and set the date. Select the
parameter
250.03 Tm and set the
time.
F 754 BoxCom 2 Communication with MC
BOX is interrupted
: Communi-
cation with Multicluster-Box is in-
terrupted.
• 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.
W 755 LoBatMod1 1 Battery protection mode 1 is ac-
tivated. • Disconnect the loads, start the
generator, start the Sunny Island
and charge the battery.
W 756 LoBatMod2 1 Battery protection mode 2 is ac-
tivated.
W 757 LoBatMod3 1 Battery protection mode 3 is ac-
tivated.
F 758 McNoVtg 2 Voltage of the main cluster can-
not be measured at L1 (Master). • Ensure that all circuit breakers of
the Sunny Island inverters in the
Multicluster-Box are closed.
• Ensure that the cabling at
connection AC1 is correctly
installed.
W 759 McNoVtgSv1 1 Voltage of the main cluster can-
not be measured at L2 (slave 1).
W 760 McNoVtgSlv2 1 Voltage of the main cluster can-
not be measured at L3 (slave 2).
W 778 DSPNoSlv1 1 CAN communication with
slave 1 is faulty.
• 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.
W 779 DSPNoSlv2 1 CAN communication with
slave 2 is faulty.
F 781 SlvError 4 Error at a slave in the main clus-
ter causing system shutdown.
Read off the pending and logged warn-
ings and errors and eliminate the
causes.
F 782 AIVtgMonFail 4 Non-compliance of monitoring
times (islanding detection) and
external grid voltage in the de-
vice at L1 (Master) • Contact the Service (see Section 16
"Contact", page 161).
10 Troubleshooting SMA Solar Technology AG
Operating Manual SI30M-44M-60H-80H-BE-en-33 72