Delta VFD220B43A User Manual

Chapter 8 Maintenance and Inspections_VFD-B Series
8-4
Revision 10/2005, BE13, SW V4.08
 DC capacity of main circuit
Maintenance Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
If there is any leak of liquid, color
change, crack or deformation
Visual inspection
{
Measure static capacity when required
Static capacity
t initial value X 0.85
{
 Resistor of main circuit
Maintenance Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
If there is any peculiar smell or
insulator cracks due to overheat
Visual inspection, smell
{
If there is any disconnection
Visual inspection or measure with
multimeter after removing wiring
between +1/+2 ~ -
Resistor value should be within
r
10%
{
 Transformer and reactor of main circuit
Maintenance Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
If there is any abnormal vibration or
peculiar smell
Visual, aural inspection and smell
{
 Magnetic contactor and relay of main circuit
Maintenance Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
If there are any loose screws Visual and aural inspection
{
If the contact works correctly Visual inspection
{

Delta VFD220B43A Specifications

General

Brand	Delta
Model	VFD220B43A
Category	Controller
Language	English