Front Panel Menu Reference SCPI Command
In the detailed channel view, in the Output dropdown, select
Curve mode. Then select one of the compensation modes in
the Comp dropdown. Press the rotary knob to select.
For initial turn-on and debug of SAS operation:
CURR:SAS:BWID "DEFAULT", (@1)
For DC to DC converter and MPPT applications with
≥20 μF external capacitance:
CURR:SAS:BWID "DCDC_20UF", (@1)
For Shunt Switching applications:
CURR:SAS:BWID "SHUNTSW", (@1)
Programming a Curve
Curve mode uses an exponential model to approximate the I-V curve as illustrated in the following
figure. It is programmed in terms of its open circuit voltage (Voc), short circuit current (Isc), maximum
voltage point (Vmp), and maximum current point (Imp) at the approximate peak power point (MPPT).
SAS operation is achieved by sampling the output voltage, applying a low-pass filter, and continually
adjusting the constant current loop using the filtered voltage as an index into the exponential model.
In Curve mode, a solar array characteristic is created from four input parameters and a curve shape:
Imp – the current at the maximum power point
Isc – the short-circuit current
Vmp - the voltage at the maximum power point
Voc – the open-circuit voltage
Specify Curve Operation
You can specify Curve operation as follows:
Keysight MP4300 Series Operating and Service Guide 79
4 Using the Modular Power System
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