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Live synchronous transfer – Rockwell Automation 7000 PowerFlex Medium Voltage (B Frame) Commissioning - ForGe (PanelView 550) User Manual

Page 121

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Rockwell Automation Publication 7000-IN006B-EN-P - May 2013

117

Commissioning the Drive Chapter 5

Sample Waveforms

Synchronous Transfer Test to verify Sync Lead Angle (50Hz System); Ch1: Idc1
(yellow), Ch2: Vuv (blue), Ch3: Vuvs (red)

Figure 66 - Sample waveform: Synchronous transfer test

Live Synchronous Transfer

While performing a live synchronous transfer:

• capture motor voltage at ACB test point “Vuv” & bypass voltage at ACB

test point “Vuvs”.

• capture and trigger on falling edge of the DC Link current waveform at

ACB test point “Idc1”.

• label the waveforms as “Vuv”, “Vuvs” and “Idc1”.
• save the worksheet as “Synch on Motor 01”, for example.

Table 8 - Oscilloscope Settings

Oscilloscope

Time Base

Wave Form

Test-Point

Waveform
Label

Chan. 1

10ms/div.

DC Link Current

Idc1

Idc1

Chan. 2

Motor Voltage

Vuv

Vuv

Chan. 3

Bypass Line
Voltage

Vuvs

Vuvs