92 Rockwell Automation Publication 6000-UM002E-EN-P - April 2018
Chapter 5 Preventative Maintenance and Component Replacement
Isolation Transformer
Cabinet
Replace/Clean Door Mounted Air Filters
Periodically remove and clean, or remove and replace, the air filters according to
the Preventative Maintenance table on page 136
. The frequency with which you
renew the filters depends on the cleanliness of the available cooling air.
There are two types of design for the air filters. The air filters are located on the
Power Module cabinet and the Isolation Transformer cabinet. The quantity of air
filters on the cabinet door are different, depending on the drive ratings. However,
the method to remove or clean the air filters is the same. The screens may be
replaced while the drive is operating, but the procedure is easier to perform while
the drive is shut down.
If the drive is running, you must replace the filter as soon as possible to prevent
foreign material from entering into the drive.
Recommended Cleaning Method of Filters:
• Vacuum Cleaner – A vacuum cleaner on the inlet side of the filter will
remove accumulated dust and dirt.
• Blow with Compressed Air – point compressed air nozzle in opposite
direction of operating air flow (Blow from exhaust side toward intake side)
• Cold Water Rinse – Under normal conditions the foam media used in the
filters, require no oily adhesives. Collected dirt is washed away quickly and
easily using just a standard hose nozzle with plain water.
Replace/Clean Door Mounted Air Filters 92
Inspect Top Mounted Cooling Fans 94
Replace Top Mounted Cooling Fans 95
Fan Balance 97
Inspect Isolation Transformer 97
Inspect Voltage Sensing Board 97
Replace Voltage Sensing Board 98
Inspect Door Position Limit Switch 99
Replace Door Position Limit Switch 100
ATTENTION: Wait at least 15 minutes for the stored energy to fully discharge
before performing maintenance on the Isolation Transformer cabinet. Failure to
do so may result in severe burns, injury, or death.
ATTENTION: The filter must be completely dry before reinstalling.
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