Rockwell Automation 7000 PowerFlex Medium Voltage (B Frame) Commissioning - ForGe (PanelView 550) - Manual (Page 116)

112 Rockwell Automation Publication 7000-IN006B-EN-P - May 2013
Chapter 5 Commissioning the Drive
Sample Waveforms
Sample waveforms captured on SCBL test points under Drive Not Running
Condition [Ch1: V2uv (red), Ch2: I2u (yellow)]
Figure 60 - Sample waveform: SCBL test points (drive not running)
DC Current Test Perform DC Test.
Summary:
• Make sure the Diagnostic Trend has been setup and is armed.
• Run the DC Test with Idc Command Test (P119) set to 0.1pu. Increase
Idc Command Test from 0.1 ? 0.3pu (for AFE drives) or from 0.1 ? 0.7pu
(for 18-pulse drives) in steps of 0.1pu. At each step, verify DC link current
regulation by monitoring Idc Error (P323) and Alpha Line (P327).
• Capture DC link voltage waveform at ACB test point “Vdcr1” and DC
link current waveform at ACB test point “Idc1” at 0.3pu (for AFE drives)
or at 0.7pu (for 18-pulse drives).
• Label the waveforms as “Vdcr1”, and “Idc1”.
• Save the worksheet as “DC Test @ 0.3pu” (for AFE drives) or “DC Test @
0.7pu” (for 18-pulse drives).
Table 4 - Oscilloscope Settings
Oscilloscope Time Base Wave Form Test-Point Waveform
Label Sheet Name
Chan. 1
2ms/div.
DC Link Voltage Vdcr1 Vdcr1
DC Test
Chan. 2 DC Link Current Idc1 Idc1