Delta Electronics Elevator Drive VFD-VL - Manual (Page 189)

Chapter 6 Fault Code Information and Maintenance|
6-12 Revision Nov. 2008, VLE1, SW V1.03
„ 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 {
If any part is deformed or
damaged
Visual inspection {
If there is any color change by
overheating
Visual inspection {
If there is any dust or 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
{
If there is any dust or dirt Visual inspection {
„ Terminals and wiring of main circuit
Maintenance
Period
Check Items Methods and Criterion
Daily
Half
Year
One
Year
If the terminal or the plate 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 {