Fault Types; Inverter Operation After Faults - Xantrex XW4024-120 Operation Manual

Troubleshooting

Fault Types

Inverter Operation After Faults

4–16
There are three types of fault messages: automatic faults, manual faults, and
escalating automatic faults. Table 4-3 describes how they differ in their behavior
and how you can respond to them when they appear on the XW System Control
Panel.
Table 4-3 Fault Types and Behaviors
Fault type Behavior
Automatic faults Clear automatically if the fault condition that generated the
message goes away. You can also acknowledge automatic faults
without waiting for them to clear automatically.
Manual faults Require you to clear them by:
•
•
Escalating automatic Clear automatically if the fault condition goes away, just like an
faults automatic fault.
However, if an escalating automatic fault occurs several times
within a defined time period, the escalating automatic fault
becomes a manual fault, requiring user intervention. For
example, if an AC Overload fault occurs three times in five
minutes, it will no longer clear itself and become a manual fault.
Then you must identify the problem, correct the fault condition,
and clear the fault.
XW Inverter/Charger operation changes when a fault occurs. How the operation
changes depends on the operating state of the unit when the fault occurred—
inverting, charging, grid or generator support, AC bypass, and so on—and on
which fault has occurred.
Table 4-4 Inverter Operation After Faults
Faults
F1, F2: AC Output
F3 to F10: AC1 Input
Voltage and Frequency
F11 to F16: AC2 Input
Voltage and
Frequency.
selecting Clear Faults on the Main XW Inverter/Charger
menu or on the menu for the Xanbus-enabled device that
generated the fault (if the fault condition still exists, the fault
message reappears)
correcting the condition that caused the fault.
State when Faults Occur Action After Faults
Inverting
AC1 input is the
preferred source and
qualified.
AC2 input is the
preferred source and
qualified.
Unit stops inverting and waits for
nominal AC output voltage level,
or a manual clear from user.
Unit begins inverting (if inverter is
enabled) or disengages AC1 and
waits for nominal AC1 input (if
inverting is disabled).
Unit begins inverting (if inverter is
enabled) or disengages AC2 and
waits for nominal AC2 input (if
inverting is disabled).
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