Rockwell Automation 20S PowerFlex SCR Bus Supply Spare Parts User Manual
Rockwell Automation Equipment
Installation Instructions
PowerFlex
®
SCR Bus Supply Spare Parts
Finding Specific Information
Installation information for this part can be found in the PowerFlex SCR
Bus Supply User Manual, publication 20S-UM001.
You can view or download this publication at
Use the Search feature on the right side of the Literature Library home page.
Search by Publication Number (not Keyword) and enter “20S-UM001.” On
the Search Results page, either click the PDF icon to view the publication or
right-click the PDF icon and select “Save Target As…” to save the
publication on your computer.
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ATTENTION: To avoid an electric shock hazard, verify that the
voltage on the bus capacitors has discharged completely before
servicing. Check the DC bus voltage between the DC+ and DC-
terminals, between the +DC terminal and the chassis, and between
the -DC terminal and the chassis. The voltage must be zero for all
three measurements.
!
ATTENTION: HOT surfaces can cause severe burns. Do not
touch the heatsink surface during operation on the SCR Bus
Supply. After Disconnecting power, allow time for cooling.
!
ATTENTION: The SCR Bus Supply contains ESD (Electrostatic
Discharge) sensitive parts and assemblies. Static control
precautions are required when installing, testing, servicing or
repairing this assembly. Component damage may result if ESD
control procedures are not followed. If you are not familiar with
static control procedures, refer to Allen-Bradley publication
8000-4.5.2, “Guarding Against Electrostatic Damage” or any
other applicable ESD protection handbook.
!
ATTENTION: Only qualified personnel familiar with SCR Bus
Supplies, adjustable frequency AC drives, and associated
machinery should plan or implement the installation, start-up, and
subsequent maintenance of the system. Failure to comply may
result in personal injury and/or equipment damage.