Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) Commissioning - ForGe Control - Manual (Page 115)

Rockwell Automation Publication 7000-IN012B-EN-P - June 2014 115
Commissioning the Drive Chapter 4
Sample Waveforms
Sample waveforms captured on ACB test points under Drive Not Running
Condition [Ch1: V2uv (red), Ch2: I2u (yellow)]
Figure 82 - Sample waveform: SCBL test points (drive not running)
DC Current Test • 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 to 0.3pu (for AFE drives) or from 0.1 to
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 6 - 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