Rockwell Automation 7000 PowerFlex Medium Voltage (B Frame) Commissioning - ForGe (PanelView 550) User Manual
Page 66
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Rockwell Automation Publication 7000-IN006B-EN-P - May 2013
Chapter 5 Commissioning the Drive
Easy access from the anode-to-cathode is available by going from heatsink-to-
heatsink as shown in the diagram below:
Figure 37 - Anode-to-cathode test
A good SCR and circuit should read between 22 and 24 kΩ.
An SCR that has failed from anode-to-cathode will commonly produce a
resistance value of 0 for a shorted device or
∞
Ω for an opened device. Unlike the
SGCT, it is highly irregular for an SCR to have a partially shorted device. If an
SCR is found to be out of tolerance, refer to the PowerFlex 7000 ‘B’ Frame User
Manual’s “Component Definition and Maintenance” section for detailed
instructions on how to replace the SCR assembly.
Resistance value between 2 heatsinks
is Anode-to-Cathode resistance
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- 8-545 Plug In Solid State Relay (2 pages)
- 20-HIM-B1 PowerFlex 7-Class HIM Bezel (DPI) (4 pages)
- 100 Contactors with DC Coil (1 page)
- 100 Contactors with DC Coil (2 pages)
- 20P PowerFlex DC Drive - Frame D Switching Power Supply Circuit Board (6 pages)
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- 45BRD Analog Laser Sensor (4 pages)
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- 56RF RFID 18 mm Cylindrical Transceiver (2 pages)
- 42KC Miniature Rectangular: 5V DC Version (2 pages)
- 20P PowerFlex DC Drive - Frame A Switching Power Supply Circuit Board (16 pages)
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- 140EX-JE2_JE3 Molded Case Circuit Breaker (4 pages)
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- 140U H-Frame Circuit Breaker Fixed and Adjustable Thermal Trip (2 pages)
- 60-2619, 42JS Swivel/Tilt Mounting Bracket (1 page)
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- 45MLA Controller Installation Instructions (16 pages)
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- 42JS Series 7000 to 42JS VisiSight Replacement Kit (2 pages)
- 22A PowerFlex 4-Class HIM Bezel (DSI) (4 pages)
- 42CS Stainless Steel Photoelectric Sensors (4 pages)
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