Product Manual

Troubleshooting
900-0161-01-01 Rev B 53
Table 7
W
arning Troubleshooting
Message Definition Possible Remedy
Fan Failure The inverter’s internal cooling fan is not
operating properly. Lack of cooling may
result in derated inverter output wattage.
Turn the battery disconnect off, and then on, to
determine if the fan self-tests. If it does not,
the unit may be damaged and requires repair.
NOTE
:
The system can continue to operate if
the inverter can be run at reasonable levels.
External cooling may also be applied.
Transformer
(in
Temps
menu)
D isplays the ambient temperature around
the inverter’s transformer.
In a MATE3-class system display, these
values are given in degrees Celsius.
If any reading does not seem to reflect the
inverter’s temperature or conditions, the unit
may be damaged and requires repair.
Output FETs
(in
Temps
menu)
Displays the temperature of the FETs
(Field Effect Transistors) and heat sink.
Capacitors
(in
Temps
menu)
Displays the temperature of the inverter’s
ripple capacitors.
Temperature Events
The temperature sensor readings shown in Table 7 are used to limit the inverter operation in
high temperatures. Table 8 shows the effects on the inverter and the temperature used by each
sensor to cause the effect.
Table 8 Inverter Temps
Effect
Temperature Reading
Transformer Output FETs Capacitors
Over Temperature
error
>125°C >80°C >80°C
Reduced charging or selling =120°C =80°C =80°C
Fan turns on >60°C >60°C >60°C
Fan turns off <49°C <49°C <49°C
GT Warnings
This screen is also available under the
Inverter Warnings
screen. The warnings in Table 9
indicate why a grid-interactive inverter has stopped selling. These warnings are caused when
the grid exceeds one of the settings in the
Grid Support
menu. A
GT Warning
may
accompany a
Disconnect
message (see Table 10) or a regular warning (see Table 7),
depending on conditions
.
Table 9 Grid Tie
W
arnings
Message Definition
AC Freq Too High
The AC source has exceeded
Grid Interface Protection
frequency levels.
AC Freq Too Low
The AC source has dropped below
Grid Interface Protection
frequency levels.
Voltage Too High
The AC source has exceeded
Grid Interface Protection
voltage levels.
Voltage Too Low
The AC source has dropped below
Grid Interface Protection
voltage levels.