Snubber resistance (sgct device) – Rockwell Automation 7000 PowerFlex Medium Voltage (B Frame) Commissioning - ForGe (PanelView 550) User Manual
Page 63
Rockwell Automation Publication 7000-IN006B-EN-P - May 2013
59
Commissioning the Drive Chapter 5
Snubber Resistance (SGCT Device)
Access to the snubber resistor is not required to test the resistance. The snubber
circuit test point is located within the PowerCage under the heatsinks. For each
device, there is one test point. To verify the resistance, measure the resistance
between the test point and the heatsink above.
Figure 34 - Snubber resistor test
If the resistor is found to be out of tolerance, refer to tthe PowerFlex 7000 ‘B’
Frame User Manual’s “Component Definition and Maintenance” section for
detailed instructions on replacing the snubber resistor assembly.
Measure resistance
between heatsink
and test point.
Snubber test point
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