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 Supply +15
Housekeeping DC power supply 15VDC is
out of tolerance.
1000 0001 Power Supply +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
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