Afore BNT030KTL - Page 30

Maintenance&Trouble Shooting
28
Type of Fault
Code Name Description Recommend Solution
E49
E50
BusUnbalancedFault
BusSwUnderVoltFault
Bus voltage under as
running
DC Bus voltage
unbalanced
F01
F02
InvHwOverCurrFault
HwOverFault
Hardware detected that
current over / BUS voltage
over
F03
F04
InvSOverCurrFault
InvROverCurrFault
R phase /Split phase L1
current over
Hardware detected that
inverter current over
S phase /Split phase L2
current over
F05
InvTOverCurrFault
T phase current over
F06 GridUnbalanCurrFault
3 phase current effective
value has big difference
F07
DcInjOverCurrFault
DC injection current over
The phase-locked loop is
operating abnormally, and
it does not stably track
the grid voltage phase.
It is detected that the
relay group 1 cannot be
opened or closed
normally.
F08 AcOverLeakCurrFault
Ac side leakage current
over
E45
E46
BusHwOverHalfVoltFault
BusHwOverVoltFault
E47
E48
BusSwOverHalfVoltFault
BusSwOverVoltFault
Bus voltage over
• Power off, then restart.
• If fault still occurs continuously and
frequently, please ask help for local
distributors.
• Power off, then restart.
• If fault still occurs continuously and
frequently, please ask help for local
distributors.
• Check if PV panels has good ground
insulation and ground wires are
connected well ground is well, then
repair it.
• Power off, then restart.
• If fault still occurs continuously and
frequently, please ask help for local
distributors.
E33
E34
DC Fault
AC Fault
Boost2SelfCheckFault
Boost1SelfCheckFault
PV boost circuit abnormal
when self checking
• Power off, then restart.
• If fault still occurs continuously and
frequently, please ask help for local
distributors.
F09
F10 GridRelay1Fault
PLLFault
• Power off, then restart.
• If fault still occurs continuously and
frequently, please ask help for local
distributors.