Over_Load
Over_Load
Reduce the number of loads, so
that the load required power is
less than the rated power of the
system.
If the problem is not resolved,
please contact AlphaESS customer
service.
GC_Fault
GC_Fault
Check if DO2 (TOP BMU)is
connected properly, and after
setting the diesel GENSET to
start, measure whether DO2 (TOP
BMU)1, 2 is on.
If the problem is not resolved,
please contact AlphaESS customer
service.
Over_Curr
Over_Curr
Reduce the number of loads, so
that the load required power is
less than the rated power of the
system. After the load reduction,
select fun-PCS-ClearFault on the
EMS menu to clear the fault,
otherwise the PCS will not
operate normally.
If the problem is not resolved,
please contact AlphaESS
customer service.
Fault Name
Troubleshooting
Fault
Category
EMS
LCD Fault
Display
Fault Name
Troubleshooting
Fault
Category
PCS
PCS
LCD Fault
Display
PCSModeFault
PCSModeFault
Check whether the inverter is in
the remote control mode. If it is
not the remote control mode,
please set it to the remote
control mode.
If the problem is not resolved,
please contact AlphaESS
customer service.
AC_Out_volt_F
DC-AC
subsystem AC
output voltage
Fault
Restart the system to check if the
fault is eliminated.
If the problem is not resolved,
please contact AlphaESS customer
service.
AC_phase_lost
DC-AC subsystem
AC phase lost
Fault
Check if there is phase loss in the
AC input of the inverter. If there
is a phase loss, please power off
and reconnect the cable.
If the problem is not resolved,
please contact AlphaESS
customer service.
off_grid_UPLF
DC-AC subsystem
off-grid voltage
phase lost Fault
Check if there is phase loss in
the AC input of the inverter. If
there is a phase loss, please
power off and reconnect the
cable.
If the problem is not resolved,
please contact AlphaESS
customer service.
EG_SF
DC-AC subsystem
emergency
stopped Fault
Check if the emergency stop
button is operated manually. If
yes, please release the emergency
stop button according to the
manual.
If the problem has not been
solved, please contact AlphaESS
customer service.
bat_overload
DC-DC
subsystem battery
overload Fault
Reduce the load on the grid side,
check if the fault is eliminated,
If the problem has not been solved,
please contact AlphaESS customer
service.
emergent_stopped
DC-DC
subsystem
emergent stopped
Fault
Check if the emergency stop
button is operated manually. If yes,
please release the emergency stop
button according to the manual.
If the problem has not been solved,
please contact AlphaESS customer
service.
grid_N_line_lost
STS subsystem
grid N-line lost
Fault
off_grid_AC_phase
_lost
STS subsystem
off-grid AC
voltage phase lost
Fault
Check if the connection of N phase
of the grid,
If the problem has not been solved,
please contact AlphaESS customer
service.
Check if the off-grid phase is
insufficient,
If the problem has not been
solved, please contact AlphaESS
customer service.
TROUBLESHOOTING
TROUBLESHOOTING
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