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Monitoring the Inverter
Fault Mode
When a fault state is detected, the appropriate fault message appears on the front panel display at the next screen refresh (within 2 seconds). The GT Inverter fault message screens are shown in Table
Fault Mode causes | These message screens only appear when there is a fault, and then flash | ||
| alternately with the Inverter Offline default screen (Table | ||
| corrected. |
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| Table | ||
| Display |
| Appears When... |
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| DC Voltage Fault |
| The actual DC voltage is over or under the allowable range, |
| 145.5V |
| 240 to 600 Vdc. |
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| The PV array should be configured such that DC voltage |
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| does not fall below 240 Vdc or rise above 600 Vdc.* |
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| AC Voltage Fault |
| The actual AC voltage is over or under the allowable range, |
| 280V |
| as specified in “Output” on page |
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| This is a utility fault; it will clear itself when the AC voltage |
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| comes within the specified range.† |
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| Frequency Fault |
| The actual Frequency is over or under the allowable range, as |
| 0.0Hz |
| specified in “Output” on page |
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| will clear itself when the frequency comes within the |
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| specified range.† |
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| Over Temp Fault |
| The unit’s internal temperature is greater than 80° C |
| 81.4C 178.5F |
| (176° F), the unit will shut down automatically and only |
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| restart when the temperature has dropped to less than 70° C |
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| (158° F). |
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| Neutral Loss |
| The GT Inverter is configured for North America, and the |
| Detected |
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| Either this is a utility fault or a |
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| connected properly. |
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| Ground Fault |
| A grounding fault is detected. The ground fault fuse will be |
| Reset System |
| blown. The system must be shut down completely, the fault |
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| corrected, the fuse replaced (see “Replacing the Ground |
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| Fault Protection Fuse” on page |
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| restarted. Troubleshooting a grounding fault should be |
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| performed by qualified personnel, such as a certified |
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| electrician or technician. |
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| Unit Shutdown |
| The GT Inverter unit has been shut down via a computer |
| via Remote |
| connected to the |
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| Protection uP |
| The protection microprocessor is not responding. |
| Not Responding |
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