Scr sharing resistance test – Rockwell Automation 7000 PowerFlex Medium Voltage (B Frame) Commissioning - ForGe (PanelView 550) User Manual
Page 67
Rockwell Automation Publication 7000-IN006B-EN-P - May 2013
63
Commissioning the Drive Chapter 5
SCR Sharing Resistance Test
To test the sharing resistor of an SCR module, disconnect the 2-pole plug of the
self-powered gate driver board labeled SHARING and SNUBBER on the circuit
board. The red wire of the plug is the sharing resistor. Measure the resistance
between the red wire of the plug and the heatsink to the left. A value of 80 k-
ohms indicates a healthy sharing resistor.
Figure 38 - SCR sharing resistance test
Resistance between heatsink and
red wire at plug is sharing resistance
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