Download Owner Manual - Energy Conscious

Front Panel Display Screens and What They Mean
Table 5-1 Startup Screens on GT Inverter Front Panel Display
Display
Duration
Description
Vph=
130V
Clr t < 1.00s
3 seconds Vph: phase-to-neutral (rms) high threshold
voltage setting, the threshold at which the inverter
disconnects itself from the power grid when
abnormally high phase-to-neutral AC voltage is
detected.
Clr t: clear time.
Vpl=
107V
Clr t < 2.00s
3 seconds Vpl: phase-to-neutral (rms) low threshold voltage
setting, the threshold at which the inverter
disconnects itself from the power grid when
abnormally low phase-to-neutral AC voltage is
detected.
Clr t: clear time.
Fh=
60.4Hz
Clr t < 0.16s
3 seconds Fh: frequency high threshold setting, the threshold
at which the inverter disconnects itself from the
power grid when abnormally high frequency is
detected.
Clr t: clear time.
Fl=
59.4Hz
Clr t < 0.16s
3 seconds Fl: frequency low threshold setting, the threshold
at which the inverter disconnects itself from the
power grid when abnormally low frequency is
detected.
Clr t: clear time.
Reconnect Delay 3 seconds Setting for the reconnect delay for the protection
305.00s
timer. After a fault clears for the specified clear
time, the protection timer starts counting down
before the inverter attempts to deliver power to the
grid.
* The voltage and frequency thresholds, clear times and reconnect delay in
Table 5-1 can be adjusted for multi-unit installations producing 30 kW or more
(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 protection timer begins counting down the reconnect delay during startup and
the “Reconnecting in sss seconds” screen appears until the timer countdown is
complete.
975-0334-01-01
5–3