Sungrow ST2752UX, Инструкция по эксплуатации и обслуживанию

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85
No. Fault name Common causes Corrective measures
(DC/DC inductor current 6
overcurrent) at the same time,
may be inductor inductor
inductance is too small resulting in
a large ripple to exceed the
inductor current threshold, at this
time consider replacing the
inductor L2 and L5.
16
DC/DC
inductor
current 3
overcurrent
Inductive current 3
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 inductor
inductance is too small resulting in
a large ripple to exceed the
inductor current threshold, then
consider replacing the inductor L1
and L4.
17
DC/DC
inductor
current 4
overcurrent
Inductive current 4
overcurrent.
Same as 16
Operation & Maintenance Instruction 5 Troubleshooting