Caltest LXI AFX Series, Manual

Page: 207 / 402

AFX SERIES® OPERATION MANUAL
SECTION 8:
Remote Control Programming
Entire Contents Copyright

2018 by Pacific Power Source, Inc. (PPS)
• All Rights Reserved • No reproduction without written authorization from PPS.
AFX Series Power Source Operation Manual Page 207 of 402
8.4.8 Harmonic Measurements Commands
Harmonic Measurements commands may be used to retrieve harmonic analysis data for voltage and
current. These measurements are returned using the SPECTrum commands.
Query Format MEASure:SPECTrum:VOLTage#[:MAGnitude]?
Description Returns harmonics spectrum for voltage on selected phase #. # = 1, 2
or 3. Returns a data set of 51, <nr2> type numbers, comma delimited.
The 1
st
element is the magnitude of the fundamental, for reference.
The 2
nd
element is the 2
nd
harmonic, etc. Values represent % of
fundamental (relative).
Only a single spectrum may be queried in a command.
Returned Data Format <nr2>, <nr2>, <nr2>,……, <nr2>
Query Example MEAS:SPECT:VOLT1?
120.000, 0.001, 0.3…., 0.000
Query Format MEASure:SPECTrum:CURRent#[:MAGnitude]?
Description Returns harmonics spectrum for current on selected phase #. # = 1, 2
or 3. Returns a data set of 51, <nr2> type numbers, comma delimited.
The 1
st
element is the magnitude of the fundamental, for reference.
The 2
nd
element is the 2
nd
harmonic, etc. Values represent % of
fundamental (relative).
Only a single spectrum may be queried in a command.
Returned Data Format <nr2>, <nr2>, <nr2>,……, <nr2>
Query Example MEAS:SPECT:CURR1?
4.6300, 0.001, 0.23…., 0.000
Command Syntax MEASure:SPECTrum:PHASe:REFerence
Description This command sets the phase reference for the harmonic analysis
measurement function.
Parameters Available settings are:
0 None.
1 (DEFAULT) All phases measurements are referenced to
phase A voltage.
2 Voltage and current phases measurements are referenced
to the voltage of the same phase (A, B or C)
3 Voltage phase measurements are referenced to the voltage
of the same phase (A, B or C).
Current phase measurements are referenced to the current
of the same phase (A, B or C)
Parameter Format <nr1>
Example MEAS:SPECT:PHAS:REF 2
Query Format MEASure:SPECTrum:PHASe:REFerence?
Returned Data Format <nr1>
Query Example MEAS:SPECT:PHAS:REF?
2