Rockwell Automation Publication 7000-UM202D-EN-P - May 2018 103
Power Component Definition and Maintenance Chapter 2
Clean the PowerCage module with a general purpose household cleaner. Do
not spray onto the PowerCage module as this promotes electrical tracking.
Apply the cleaner to a paper towel and wipe the surface of the PowerCage
module where you will apply the gasket. Liberally spray the surface with
distilled water, then wipe dry with a clean paper towel.
Apply a thin bead of Loctite 454 adhesive to the PowerCage module surface in
a zigzag pattern using the original nozzle size. Use the tip to spread the adhesive
around to cover at least 50% of the area. There should be sufficient quantity of
adhesive to remain wet long enough for the gasket to be applied. The adhesive
uses the moisture in the air as it cures. The higher the humidity the faster the
adhesive will cure.
Position the gaskets ensuring the gasket is oriented correctly. Center the gasket
over the opening for the heatsinks with the narrow end positioned closest to
the test points. Apply the porous surface of the gasket to the PowerCage
module. The gasket will bond almost immediately. Apply some pressure to the
gasket for 15…30 seconds.
After all the gaskets have been placed check to see that the gasket has bonded
properly. Repair any loose areas.
Removing the PowerCage Module
1. Ensure there is no power to the equipment.
2. Remove all the components located within the module to avoid any
damage to the components. Consult the required sections to remove
clamping pressure, as well as remove the SGCT or SCR, circuit boards,
and thermal sensor.
IMPORTANT This adhesive will bond anything quickly, including fingers!
ATTENTION: To prevent electrical shock, disconnect the main power before
working on the drive. Verify that all circuits are voltage-free using a hot stick
or appropriate voltage-measuring device. Failure to do so may result in injury
or death.
ATTENTION: Static charges can destroy or damage the SCR and SCR SPGD
board. Properly ground yourself before removing the replacement SCR and
SCR SPGD board from the protective anti-static bag. Using damaged circuit
boards may also damage related components. Use a grounding wrist strap for
handling sensitive circuit boards.
To Next Page
Loading...
Need help?
General
