Hi experts,
My customer would like to perform 3-phase 4-wire measurements using EVM430_F6779 and EMDC.
We think EVM430_F6779 supports the Neutral terminal as a hardware, but the EMDC(1_40_00_03) sample software does not.
Could you please tell me how to display the Neutral results on the EMDC GUI?
in particular,
Q1: What settings should I make to add Neutral based on “EVM430-F6779_CT_3V_3C_50Hz”?
[Details 1]
We have attached the “EVM430-F6779_CT_3V_4C_50Hz” created based "3V_3C_50Hz".
・CT3: For Neutral, the parameters are the same as CT0~2.
・Pin: SD3N0/P0
・Pulse：Active=P1.3(NC), Reactive=P3.2(NC), Enable check
・Phase：Voltage=SD0, Current=SD3, Total check
・“Generate Code” → CCS Build → Uniflah Load
Q2: What conditions should I input when calibrating the additionally set Neutral terminal?
[Details 2]
Since there is no voltage in Neutral, we have temporarily calibrated it at Gain=0V/1A/0°, Phase=0V/1A/60°.
It was expected that CT2 and CT3 would display the same measurement results on the GUI, but they are different.
The waveforms on the oscilloscope are almost the same for CT2 and CT3.(Measure the same point for the test)
The voltage and current values on the GUI are as shown in the waveform for CT2, but are incorrect for CT3.
Q3: In the first place, is it not possible to measure with EMDC of the Neutral terminal?
Is this terminal just for detecting earth leakage?
Best regards,
O.H
