Delta Electronics VFD S 115V Series User Manual page 154

Printed circuit board and connector of main circuit
Check Items
If there are any loose screws and
connectors
If there is any peculiar smell and
color change
If there is any crack, damage,
deformation or corrosion
If there is any leaked liquid or
deformation in capacitors
Cooling fan of cooling system
Check Items
If there is any abnormal sound or
vibration
If there is any loose screw
If there is any change of color due
to overheating
Ventilation channel of cooling system
Check Items
If there is any obstruction in the
heat sink, air intake or air outlet
Revision August 2008, SE09, SW V2.61
Chapter 8 Maintenance and Inspections|VFD-S Series
Methods and Criterion
Tighten the screws and press the
connectors firmly in place.
Visual inspection and smell
Visual inspection
Visual inspection
Methods and Criterion
Visual, aural inspection and turn the
fan with hand (turn off the power
before operation) to see if it rotates
smoothly
Tighten the screw
Change fan
Methods and Criterion
Visual inspection
Maintenance
Period
Half One
Daily
Year Year
Maintenance
Period
Half One
Daily
Year Year
Maintenance
Period
Half One
Daily
Year Year
8-5