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| Front Panel Display Screens and What They Mean |
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| Table | Startup Screens on GT Inverter Front Panel Display | ||||
| Display |
| Duration |
| Description | |
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| Vph= | 130V |
| 3 seconds |
| Vph: |
| Clr t < 1.00s |
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| voltage setting, the threshold at which the inverter | |
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| disconnects itself from the power grid when |
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| abnormally high |
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| detected. |
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| Clr t: clear time. |
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| Vpl= | 107V |
| 3 seconds |
| Vpl: |
| Clr t < 2.00s |
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| setting, the threshold at which the inverter | |
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| disconnects itself from the power grid when |
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| abnormally low |
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| detected. |
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| Clr t: clear time. |
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| Fh= | 60.4Hz |
| 3 seconds |
| Fh: frequency high threshold setting, the threshold |
| Clr t < 0.16s |
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| at which the inverter disconnects itself from the | |
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| power grid when abnormally high frequency is |
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| detected. |
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| Clr t: clear time. |
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| Fl= | 59.4Hz |
| 3 seconds |
| Fl: frequency low threshold setting, the threshold |
| Clr t < 0.16s |
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| at which the inverter disconnects itself from the | |
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| power grid when abnormally low frequency is |
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| detected. |
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| Clr t: clear time. |
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| Reconnect Delay |
| 3 seconds |
| Setting for the reconnect delay for the protection | |
| 305.00s |
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| timer. After a fault clears for the specified clear | |
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| time, the protection timer starts counting down |
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| before the inverter attempts to deliver power to the |
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| grid. |
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*The voltage and frequency thresholds, clear times and reconnect delay in Table
(with the permission of the local utility) using GTConfigLite software.
†The clear time is the total time to disconnect the output from the grid. It is the sum of the debounce time and the hardware delay time. The debounce time is the protection processor waiting time before it declares a fault. This delay is necessary to avoid nuisance trips. The hardware delay time (100 ms maximum) is the time taken by the hardware to disconnect the output from the grid after a fault has been declared.
The protection timer begins counting down the reconnect delay during startup and the “Reconnecting in sss seconds” screen appears until the timer countdown is complete.