Power Supply Function
3. Use the knob or Left / Right key to select LV148, and press [Enter].
4. Use the knob or Left / Right key to select E-01, and press [Enter].
At this time, the lower right corner of the VFD screen displays the information
of the recalled waveform: LV148–E01.
5. Press [On/Off] on the front panel to turn on the output.
6. According to the selected trigger method (same as the trigger method of the
LIST function), for example, press [Shift]+[On/Off](Trigger) to trigger the
output of the waveform.
4.6.4 Solar Photovoltaic Curve Simulation Function (SAS)
IT-M3900C SAS photovoltaic simulation power supply provides the maximum
power point tracking (MPPT) mechanism built-in, and it is very important to test
the efficiency of this MPPT. The PV array/module/cell is a device that converts
from light energy to electric energy. It is made by a simple semiconductor PN
junction that the major output characteristic is that there’s only one maximum
power point (MPP) at certain sunlight intensity. The PV inverter is designed to
track this point to harvest maximum energy that is generated by the PV array.
SAS function menu is as follows:
SAS SAS function menu
Run Indicates to enter the SAS function mode and wait for the
trigger to run the currently selected PV curve file.
Static Static PV curve setting.
Curve Open or edit a fixed format PV curve.
Open Select a fixed format PV curve.
Recall
Inner
Sas File
Set the name of the PV curve
file and recall the PV file
stored inside the instrument.
Edit Edit a fixed format PV curve.
Pmp Set the maximum power.
Vmp Set the maximum power
voltage.
Formula Regulatory settings. The
choice of solar panel materi-
als under different regulations
is different.
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