Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive - Air-Cooled (A Frame) - Manual (Page 171)

Commissioning 4-17
7000 “A” Frame 7000A-RM001A-EN-P – January 2011
If the dimensional and electrical prints are not available, a copy can
be sent from the factory. In addition, if the drawings require changes
to accurately suit the installation and application of the system,
please fax or e-mail them to the factory so they may be revised.
Electrical System One-line Diagram
Once the Rockwell Automation electrical and dimensional drawings
are clearly understood, a copy of the electrical system one-line
drawing should be obtained. In studying this drawing, all relevant
equipment tag Identification names and number should be identified.
The system should be studied for sources of power and parallel paths
of medium voltage power to the drive. A copy of the one-line diagram
should be retained for the drive commissioning and if possible sent
to the Medium Voltage division where it will be archived and used in
the event that future customer assistance is required.
Verify One-line Diagram on Site
Once all documentation has been reviewed, an on site inspection of
the drive line-up is required. While referencing the one-line diagram
and Rockwell Automation prints, identify all the locations of the
components within the drive line-up by their Tag Identification name
or number. Trace the power cables from point to point while
following the electrical diagrams. Any discrepancy between the
physical installation and the electrical prints should be reviewed
prior to commencing the drive commissioning.
Inspect Process
Before commencing commissioning on the drive line-up it is
important to inspect the process which the drive has been applied to.
This step is not only important as a means of identifying and
understanding how the equipment is designed to adapt to the
customer’s application, but it will also be used to identify any
potential hazards. Review the process and determine what measures
need to be taken to ensure that commissioning the equipment will not
expose anyone to hazardous situations or in any way do damage to
the equipment involved in the application.
A T T E N T I O N A T T E N T I O N Verify that the load is not turning due to the
process. A freewheeling motor can generate
voltage that will be back-fed to the equipment
being serviced. Take all action necessary to
ensure that motor regeneration into the drive
does not occur while the equipment is being
serviced.