Delta EB3000 Series User Manual page 382

Main circuit transformer and reactor
Items to Check
Check for any abnormal vibration or odors
Main circuit magnetic contactor and relay
Items to Check
Check for any sound of vibration while
running
Check that the contact works correctly
Main circuit PCB and connector
Items to Check
Check for any loose screws and connectors
Check for any odors and color change
Check for any crack, damage, deformation
or corrosion
Check for any liquid leaks or deformation in
capacity
Cooling system cooling fan
Items to Check
Check for any abnormal sound or vibration
Check for any loose bolts
Check for any color change due to
overheating
Cooling system ventilation channel
Items to Check
Check for any obstruction in the heat sink,
air intake or air outlet
NOTE: Use a chemically neutral cloth to clean and use a dust cleaner to remove dust when necessary.
Chapter 10 Maintenance and TroubleshootingEB3000
Methods and Criterion
Visual, audible inspection and
smell
Methods and Criterion
Audible inspection
Visual inspection
Methods and Criterion
Tighten the screws and press
the connectors firmly in place.
Visual and smell inspection
Visual inspection
Visual inspection
Methods and Criterion
Visual, audible inspection, and
turn the fan by hand (turn off the
power before operation) to see if
it rotates smoothly.
Securely tighten
Visual inspection
Methods and Criterion
Visual inspection
10-5
Maintenance Period
Daily Half Year One Year
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Maintenance Period
Daily Half Year One Year
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
Maintenance Period
Daily Half Year One Year




Maintenance Period
Daily Half Year One Year



Maintenance Period
Daily Half Year One Year
