Front Panel Display Screens and What They Mean
975-0466-01-01 5–9
Additional Fault
messages for all
systems
Additional message screens can be viewed in fault mode by tapping the front
panel. Each additional tap displays the next screen in the order shown in
Table 5-9.
Frequency Fault
47.0Hz
The actual frequency is over or under the allowable range, as
specified in “Output” on page A–2. This is a utility fault; it
will clear itself when the frequency comes within the
specified range.†
Over Temp Fault
86.4C 178.5F
The unit’s internal temperature is greater than 85° C, the unit
will shut down automatically and only restart when the
temperature has dropped to less than 75° C.
Unit Shutdown
via Remote
The GT Inverter unit has been shut down via a computer
connected to the RS-232 port.
Protection uP
Not Responding
The protection processor is not responding.
* It is normal to receive this fault during low light conditions at dawn or dusk. At
such times, the PV voltage drops below the lower limit of the maximum power
point range, and the array does not have sufficient energy to power the inverter.
† Grid fault. When this fault is cleared the protection timer will begin its
countdown and you will see the Reconnecting in sss seconds and Inverter
Offline special screens (see Table 5-10) flashing alternately until the
countdown is complete.
Table 5-8
Fault Message Screens
Display Description
Table 5-9
Additional Fault Mode Screens
Tap Display*
* In a multiple unit system with network cables installed, the system values
displayed are for the entire system. Time online and array readings are for the
local inverter and PV array associated with that inverter.
Description
1st Current fault message
screen (see Table 5-8)
LCD backlight turns on for better readability.
2nd System 0W
Today 2.500kWh
Energy being produced by the system now.
Cumulative energy produced by the system today.
3rd System Lifetime
305kWh
Lifetime energy produced by the GT Inverter
system.
4th Time Online
Today hh:mm:ss
Length of time inverter was online today, in
hours (hh), minutes (mm) and seconds (ss).
5th Array Readings
350.5V 8.4A
Immediate DC voltage and current readings of
power from the PV array.
6th Grid Readings
230.6V 50.0Hz
Immediate AC voltage and frequency readings of
power from the Grid.
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