PV Grid-tied Residential Inverter and Integrated AC/DC Disconnect
Installation and Operation Manual
37
Fault Code
VFD Text
Fault Description
1000 0100
AC Freq Low
The grid frequency went below the limits in
Table 4-3.
1000 0080
AC Freq High
The grid frequency went above the limits in
Table 4-3.
1000 0020
DC Voltage Low
The DC voltage is below the startup voltage.
1000 0010
DC Voltage High
DC voltage is above upper operating limit
450V.
1000 0002
Power 15
Housekeeping DC power supply 15VDC is
out of tolerance.
1000 0001
Power 5
Housekeeping DC power supply 5VDC is out
of tolerance.
0400 0000
Ground Fault
The inverter detected a blown GFI fuse.
0200 0000
Power Low
The inverter shut down because it was
producing less than 60W for 5 minutes.
0100 0000
CPU Fault
The inverter encountered a problem in the
CPU.
0040 0000
Over Current
Safety protection. The inverter encountered
an over-current fault.
0020 0000
Pre-charge
The inverter experienced trouble energizing
the transformer.
0004 0000
Heatsink Temp
The heat sink is above or below the operating
limits of -13°F to 203°F (-25°C to 95°C).
0002 0000
Watchdog Fault
The CPU experienced a watch-dog fault.
0001 0000
Ambient Temp
The temperature detected inside the inverter
is outside the normal operating limits of -13°F
to 203°F (-25°C to 95°C).
Table 6-1 Fault Codes
The following fault codes indicate the inverter will restart once conditions
are within normal operating conditions as listed in Appendix A, Table A-1.
Fault Code
1000 0400
1000 0200
1000 0100
1000 0080
1000 0020
1000 0010
