Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C Frame) - Classic Control - Manual (Page 433)

Component Definition and Maintenance 6-89
7000 “C” Frame 7000L-UM300I-EN-P – June 2013
Drive Control Board Replacement
Before replacing the DCB-L or the DCB-M, it is important to record
all of the programmed drive parameters and settings. Specifically,
the parameters, fault masks, fault descriptions, and PLC links are
critical. This information is stored in NVRAM on each, and as a
result you may lose your settings with a new board. The best method
to record parameters is to use the memory on the terminal. Other
options include a flashcard, HyperTerminal, the door-mounted
printer, or DriveTools
TM to record the parameters to a file.
Otherwise, recording information by hand is the only option left.
In the situation where a board has failed, you probably will not be
able to save parameters after the failure. That is why it is important
to save all parameters when you are finished commissioning or
servicing the drive. In this case you should contact the customer to
see if they have a copy of the last parameters, or contact Product
Support to check if they have a copy.
The DCB-L, DCB-M, and CIB are all connected together using solid
plug connections. This means that the best way to change any of the
boards without physically stressing the connections and boards is to
remove all 3 from the drive and change the board externally.
Instructions to replace the Drive Control Boards
1. Record all drive setup information using any of the options
above, if possible. You should always store parameters to the
Operator Interface Terminal.
2. Ensure that all medium voltage and control voltage power to the
drive is isolated and locked out.
3. Note and Mark the location and orientation of all the ribbon
cables, plugs, and connectors into the DCB-L, DCB-M, and CIB.
Use the electrical drawing as a reference.
4. Using your static strap, disconnect the Fiber Optic cables tie
wraps that run along the front of the cabinet from the sheet
metal. Use great care when handling Fiber Optic cables as any
damage can affect transmission capabilities.
5. Remove the Fiber Optic Interface (FOI) Boards from the DCBs.
There are standoffs and pins from the DCB that slide into the
FOI boards, but they are physically attached only using the
standoff connectors, and you have to be firm, but CAREFUL,
in freeing the FOI boards.