Installation and Operation Manual 13
AC Voltage Low
F00
AC Voltage is too low.
AC Voltage High
F01
AC Voltage is too high.
AC Frequency Low
F02
AC frequency is too low.
AC Frequency High
F03
AC frequency is too high.
Bus Voltage Low
F04
Bus voltage is too low.
Bus Voltage High
F05
Bus voltage is too high.
Bus Voltage Abnormal
F06
Positive voltage or negative voltage is too
high or too low on bus.
Insulation Impedance Low
F07
PV arrays Insulation impedance is too
low.
Input current high
F08
PV Input current is too high.
Reserved
F09
Reserved
Inverter Current High
F10
Inverter current is too high.
Inverter DC Current High F11
Inverter DC current is too high.
Reserved
F12
Reserved
Heatsink Temperature High F13
Heatsink temperature is too High.
AC Relay Abnormal
F14
AC relay is abnormal.
PV Input Voltage Low
F15
One of PV input is idle when inverter is
set on parallel mode.
Remote Off
F16
Status of inverter is on remote off.
Reserved
F17
Reserved
SPI Communication Fault F18
Communication fault on control
board.
Reserved
F19
Reserved
Leakage Current High
F20
Leakage current is too high.
Self-Checking Failure Of
Leakage Current
F21
Self-checking Failure of Leakage Current.
Consistency Voltage Fault F22
Inconsistent voltage between primary
CPU and secondary CPU.
Consistency Frequency
Fault
F23
Inconsistent frequency between primary
CPU and secondary CPU.
DSP Operation Fault
F24
DSP communication faulty on
control board.
DSP Communication Lost F32
DSP communication faulty on
control board.
Table 5.2 Alarm Information
Alarm message
Alarm
code
Solutions
Zero Power
W03
It is only a reminding message to show DC inputs
very low and inverter is about to shut down.
Clock Warning
W16
Alarm message for clock
