Rockwell Automation 7000 PowerFlex Medium Voltage (B Frame) Commissioning - ForGe (PanelView 550) - Manual (Page 119)

Rockwell Automation Publication 7000-IN006B-EN-P - May 2013 115
Commissioning the Drive Chapter 5
Sample waveforms recorded on 18-Pulse Drive running at 75% load (Ch1: Line
Voltage, Ch2 - Line Current, Ch3 - Motor Voltage, Ch4 - Motor Current)
Figure 64 - Sample waveform: 18 pulse drive at 75% load capacity
Synchronous Transfer When commissioning a drive employing synchronous transfer, capture and
submit the following waveforms with the commissioning package.
While measuring the bypass (BP) contactor closing time:
• Capture 120V bypass close command from the BP Contactor Close
output ( J1-12) at the ACB (refer to electrical drawing for specific wire/
terminal number).
• Capture the 9V signal across the bypass contactor vacuum bottles (refer to
the tech note PF7000_GEN-78 for details).
• Label the waveforms as “BP_Close_Cmd” and “Actual_Closure”.
• Save the worksheet as “Bypass Contactor Close Delay”.
Table 6 - Oscilloscope Settings
Oscilloscope Time Base Wave Form Test-Point Waveform Label
Chan. 1
25ms/div.
BP Contactor Close
Command BP Contactor Close
Command BP_Close_Cmd
Chan. 2 Actual Closure of BP Across 2K-Ohm resistor
connected in series with 9V
battery Actual_Closure