Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C Frame) - Classic Control - Manual (Page 281)

4-76 Commissioning
7000L-UM300I-EN-P – June 2013 7000 “C” Frame
Press the start button and the drive should start running, pumping 0.1 pu (10%) of rated
current through the DC link. Alpha Line should be approximately 90°-92°.
We can also check the Idc Reference and
Feedback. Press EXIT [F10], and scroll back
down to Current Control and press Enter.
Idc reference should be at 0.100 pu and Idc
Feedback should be around that same number.
Ensure that Idc error stays around 0.
You can see the Idc waveform on the IDCP test point on the SCBL. This is not the test point
in the center of the board, but the one on the left. This test point should be have 18 ripples
per cycle for an 18P drive, should not have the ripples drop down to 0, and should have
approximately 0.5V offset for each 0.1 pu IDC. See the Troubleshooting chapter for sample
waveforms.
Press MODIFY [F7], and increase Idc to .2
pu, and repeat the process. Go as high as 0.7
pu in .1 steps for 18P, and 0.3 pu in .1 steps
for PWM, verifying each level as you
increase the current. If there is a current
meter somewhere on the input to the
transformer/drive, check the current to
ensure that it matches up with what you think
we are pumping.
When we are satisfied everything is OK,
bring the IDC current down in steps of .1 pu
to 0, and then stop the drive. Return to the
Feature Select parameter group and change
Operating Mode back to Normal.