Delta VFD022B21A - Periodical Maintenance

Chapter 8 Maintenance and Inspections_VFD-B Series
8-2
Revision 10/2005, BE13, SW V4.08
Periodical Maintenance
 Ambient environment
Maintenance Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
Check the ambient temperature,
humidity, vibration and see if there are
any dust, gas, oil or water drops
Visual inspection and measurement
with equipment with standard
specification
{
If there are any dangerous objects Visual inspection
{
 Voltage
Maintenance Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
Check if the voltage of main circuit and
control circuit is correct
Measure with multimeter with
standard specification
{
 Keypad
Maintenance Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
Is the display clear for reading Visual inspection
{
Any missing characters Visual inspection
{
 Mechanical parts
Maintenance Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
If there is any abnormal sound or
vibration
Visual and aural inspection
{
If there are any loose screws Tighten the screws
{