Sungrow ST2752UX, Инструкция по эксплуатации и обслуживанию

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84
No. Fault name Common causes Corrective measures
14
DC/DC
inductor
current 1
overcurrent
Inductive current 1
overcurrent.
If the fault recurs.
If a fault occurs at the same time
as a bus-side overcurrent or a
battery-side overcurrent, consider
whether the machine is operating
in constant voltage mode and the
system power allocation is greater
than the maximum power of the
machine, and suggest a
reasonable power allocation.
Confirmation of non-above
reasons, consider sampling
abnormalities, it is recommended
to replace the main power board
and control board, if still can not
be solved, whether with the fault
(DC/DC inductor current 6
overcurrent) at the same time,
may be inductor inductance is too
small resulting in ripple is large to
exceed the inductor current
threshold, then consider replacing
the inductor L3 and L6.
15
DC/DC
inductor
current 2
overcurrent
Inductive current 2
overcurrent.
If the fault recurs.
If a fault occurs at the same time
as a bus-side overcurrent or a
battery-side overcurrent, consider
whether the machine is operating
in constant voltage mode and the
system is deploying more power
than the machine's maximum
power, and recommend
reasonable power deployment.
Confirmation of non-above
reasons, consider sampling
abnormalities, it is recommended
to replace the main power board
and control board, if still can not
be solved, whether with the fault
5 Troubleshooting Operation & Maintenance Instruction