ITech IT7900P Series User Manual page 55

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5.7 Waveform Selection
The user can set the output waveform in the config menu of IT7900 series power
supply. Eight output waveforms below are available, user can select the
waveform in Config->Waveform menu.
Set the Phase, it means the output stop phase angle when close the K1
switch.
The user can click the more button and set the test method.
The IT7900P Grid Simulator provides two end-of-island state detection
methods:
Inhibit control enable: set to Enable, the inverter outputs a signal after
shutdown, and when the IO-1 pin of the IT7900P grid simulator receives this
signal, it ends the islanding simulation state, the K1 and K2 switches are
disconnected, and the On/Off switch is turned off. This stopping method
requires that the inverter has the function of outputting a signal after
disconnection. the inverter output signal is connected to the IO-1 pin and
the IO-1 function set to the default function.
The parameter information: After the IT7900P Grid Simulator detects that
the input voltage/current/power is less than the set value, it ends the
islanding simulation state, the K1 and K2 switches are disconnected, and
the On/off switch is turned off.
Close the K2 switch, connecting the load and UUT, and then close the K1
switch, power on the UUT.
Open the K1 switch, enable the islanding status. Test the anti-islanding
protection response time, The interface will display the running time value
in the island state.
After the K1 switch is disconnected, the machine can output a voltage signal
as a reference point for the island start time, Connect the IO-6 pin and the
pin function is defined as Trigger1-out to get this voltage signal.
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Voltage Source Mode Operation
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