Programming an Arbitrary Waveform
l Specify the Arb type and dwell
l Configure the Arb
l Specify how many times you want the Arb to repeat
l Specify how you want the Arb to end
Certain output amplitude and frequency combinations can exceed the instrument's
dynamic response capability and cause the output to shut down, especially under
no-load conditions. Refer to Output Dynamic Response for more information.
The output of the Keysight RPS models can be modulated by the instrument's built-in arbitrary
waveform generator. This allows the output to generate complex user-defined voltage or current
waveforms. The following are key features of the constant-dwell arbitrary waveform generator:
l Generate voltage or current arbitrary waveforms.
l Arbs can contain up to 65,535 data points.
l A single dwell value applies to every point in the constant-dwell arbitrary waveform (see
ARB:VOLT:CDW:DWEL for dwell information).
l Only the Arb that corresponds to the active priority mode, either voltage or current priority, may be
generated.
Specify the Arb type and dwell
To specify the Arb type and dwell:
Front Panel Menu Reference SCPI Command
Select Transient\Arb\Config.
In the dropdown list, pick either a voltage or a
current Arb. Then press Select.
Enter a dwell value in the Dwell field. Then press
Select.
To specify a voltage or current Arb:
ARB:FUNC:TYPE VOLT
ARB:FUNC:TYPE CURR
To specify a dwell time of 1 millisecond:
ARB:VOLT:CDW:DWEL 0.001
ARB:CURR:CDW:DWEL 0.001
Configure the Arb
Note that you can only view Arb point data from the front panel. You cannot program Arb data from the
front panel. You must use the SCPI ARB:CURRent:CDWell or ARB:VOLTage:CDWell commands to
program the Arb data.
4 Using the Regenerative Power System
132 Keysight RP7900 Series Operating and Service Guide
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