SMA SI 3.0-11 - Manual (Page 60)

9 Troubleshooting SMA Solar Technology AG
60 SI30M-44M-60H-80H-BE-en-30 Operating Manual
F 743 CANCom 3 Internal device CAN communication
of the master is disturbed.
•
Ensure that the terminators in the
communication bus are attached.
•
Ensure that undamaged CAT5e
cables are used for communication
and that the cables are plugged in
correctly.
• Contact the SMA Service Line.
W 744 CANComSlv1 1 Internal device CAN communication
of slave 1 is disturbed.
W 745 CANComSlv2 1 Internal device CAN communication
of slave 2 is disturbed.
W 747 InvTmpSnsSlv1 1 Temperature sensor on the
transformer of slave 1 is defective.
• Contact the SMA Service Line.
W 748 InvTmpSnsSlv2 1 Temperature sensor on the
transformer of slave 2 is defective.
W 750 InvTmpSnsSlv1 1 Temperature sensor on the heat sink
of slave 1 is defective.
W 751 InvTmpSnsSlv2 1 Temperature sensor on the heat sink
of slave 2 is defective.
W 753 DateInvalid 1 System time is invalid. • 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 Multicluster Box
is interrupted.
•
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 protects the
battery. Level 1 is active.
• Disconnect the loads, start the
generator, start the Sunny Island
and charge the battery.
W 756 LoBatMod2 1 Battery protection mode protects the
battery. Level 2 is active.
W 757 LoBatMod3 1 Battery protection mode protects the
battery. Level 3 is active.
F 758 McNoVtg 2 Voltage of the main cluster cannot be
measured at the 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 cannot be
measured at slave 1.
W 760 McNoVtgSlv2 1 Voltage of the main cluster cannot be
measured at slave 2.
No. Name Level Cause Corrective measures