Delta Electronics VFD007S23A User Manual
Chapter 8 Maintenance and Inspections|VFD-S Series
Revision August 2006, SE08, SW V2.61
8-3
Maintenance
Period
Check Items
Methods and Criterion
Daily
Half
Year
One
Year
Check partsfor deformity or
damaged
damaged
Visual inspection
If there is any color change
caused by overheating
caused by overheating
Visual inspection
Check for dust and dirt
Visual inspection
Main circuit
Maintenance
Period
Check Items
Methods and Criterion
Daily
Half
Year
One
Year
If there are any loose or missing
screws
screws
Tighten or replace the screw
If machine or insulator is
deformed, cracked, damaged or
with changed color change due
to overheating or ageing
deformed, cracked, damaged or
with changed color change due
to overheating or ageing
Visual inspection
NOTE: Please ignore the color
change of copper plate
Check for dust and dirt
Visual inspection
Terminals and wiring of main circuit
Maintenance
Period
Check Items
Methods and Criterion
Daily
Half
Year
One
Year
If the wiring shows change of
color change or deformation due
to overheat
color change or deformation due
to overheat
Visual inspection
If the insulation of wiring is
damaged or the color has
changed
damaged or the color has
changed
Visual inspection
If there is any damage
Visual inspection