Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive - Air-Cooled (A Frame) - Manual (Page 239)

Commissioning 4-85
7000 “A” Frame 7000A-RM001A-EN-P – January 2011
Synchronous Transfer When commissioning a drive employing synchronous transfer, the
following waveforms should be captured and submitted with the
commissioning package. Refer to the “Synchronous Transfer
Commissioning Guidelines” for a detailed commissioning
procedure.
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 4.H – Oscilloscope Setting
Oscilloscope Time Base Waveform Test-Point Waveform Label
Ch. 1
BP Contactor
Close Command
BP Contactor
Close Cmd
BP_Close_Cmd
Ch. 2
25ms/div.
Actual Closure of
BP
Across 2K-Ohm
resistor
connected in
series with 9V
battery
Actual_Closure
Ch1: Bypass Contactor Close Command (BPC output at ACB, J1-12 & 402)
Ch2: Actual Closure of Bypass Contactor (using 9V battery across contactor
vacuum bottles)