Circuit board replacement – Rockwell Automation MV SMC Flex Motor Controller (for Series K or later) User Manual
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Rockwell Automation Publication 1560E-UM051F-EN-P - June 2013
Chapter 9
Troubleshooting
Circuit Board Replacement
The replacement of printed circuit boards is straightforward, however, there are a
number of precautions which must be considered when handling the boards.
1.
Remove all power from the equipment.
2.
Carefully detach all wires, cables and connectors, noting their location and
orientation. For the interface board, remove the control module (see
3.
For boards mounted with hardware, remove the hardware, taking care not
to drop anything onto other circuits. For boards with nylon stand-off
posts, squeeze the section above the board and carefully pull the board up
and off the post.
4.
Lift out the circuit board, and check that the replacement board is the
correct part number and revision before installation (refer to
). Install the new board by replacing the hardware, or pressing
down onto nylon stand offs. Connect all wires, cables and connectors.
Ensure that all switch and/or jumper settings on the new board are
identical to those on the old board, and correct for the application.
ATTENTION: Some circuit boards may contain CMOS components which can be
destroyed by static charges generated by friction of materials made with
synthetic fibres. Use of damaged circuit boards may also damage related
components. A grounding wrist strap is recommended for handling sensitive
circuit boards.
ATTENTION: To avoid shock hazard, ensure the main power has been
disconnected before working on the controller, motor or control devices.
Verify that all circuits are voltage free using a hot stick or appropriate
voltage measuring device. Failure to do so may result in burns, injury or
death.
ATTENTION: The fiber-optic cables can be damaged if struck or bent
sharply. They have a locking feature which requires pinching the tab on
the connector and gently pulling straight out. The component on the
printed circuit board should be held to prevent damage.