Replacing air filters – Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - ForGe Control User Manual
Page 123
Rockwell Automation Publication 7000-UM202B-EN-P - June 2014
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Component Definition and Maintenance
Chapter 3
If rear panel access is not possible, follow this procedure:
1.
Remove the DC Link barrier and impeller access panel (
). Remove electrical components in front of the inlet ring access
panel.
2.
Remove bolts from the inlet ring; do not to allow the ring to fall.
3.
Remove inlet ring via the bottom access panel by moving it around the DC
link and diagonally out the door. You may have to shift the DC link.
4.
To install the new ring, reverse the above procedure. Rotate the fan
impeller by hand to check clearance inside the inlet ring.
Move the ring and retighten bolts to eliminate interference.
5.
Replace access panels and electrical components.
Replacing Air Filters
Air filters are located at the cooling air intake grill mounted on the door in front
of the converter, line reactor and transformer cabinets.
You must periodically remove and clean, or remove and replace, the filter
material. The frequency with which you renew the filters depends on the
cleanliness of the available cooling air.
You can replace filters in an operational drive, but the procedure is easier to
perform while the drive is shut down.
):
1.
Using an 8 mm Hex key, loosen the ¼ turn fasteners and swing open the
hinged grill assembly.
2.
Remove filter material. If the drive is running, you must replace the filter as
soon as possible to prevent foreign material from falling into the drive.
Be careful when removing the filter to prevent accumulated dirt on the inlet side
of the filter from being sucked into the drive. It may be difficult to remove the
filter material without tearing it due to the suction at the air inlet.
Recommended Cleaning Method of Filters:
•
Vacuum Clean – A few passes of a vacuum cleaner on the inlet side of the
filter will remove accumulated dust and dirt in seconds.
•
Blow with Compressed Air – point compressed air nozzle in opposite
direction of operating air flow (Blow from exhaust side toward intake side)
IMPORTANT
The fan must not make contact with the inlet ring.