Chapter 8 Maintenance and Inspections
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VFD-B Series
Revision July 2008, BE16, SW V4.08 & V5.00
8-3
Maintenance
Period
Check Items
Methods and Criterion
Daily
Half
Year
One
Year
Check parts for deformity or
damaged
Visual inspection
{
If there is any color change
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
Tighten or replace the screw
{
If machine or insulator is
deformed, cracked, damaged or
with 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 is color change or
deformation due to overheat
Visual inspection
{
If the insulator of wiring is
damaged or color change
Visual inspection
{
If there is any damage
Visual inspection
{
