Delta VFD-ED Series User Manual

Chapter 15 Maintenance and TroubleshootingVFD-ED
15-5
Main circuit transformer and reactor
Items to Check Methods and Criterion
Maintenance Period
Daily Half Year One Year
Check for any abnormal vibration or odors Visual and audible inspection

Main circuit magnetic contactor and relay
Items to Check Methods and Criterion
Maintenance Period
Daily Half Year One Year
Check for any sound of vibration while
running
Audible inspection

Check that the contact works correctly Visual inspection

Main circuit PCB and connector
Items to Check Methods and Criterion
Maintenance Period
Daily Half Year One Year
Check for any loose screws and connectors
Tighten the screws and press
the connectors firmly in place.

Check for any odors and color change Visual and smell inspection

Check for any crack, damage, deformation
or corrosion
Visual inspection

Check for any liquid leaks or deformation in
capacity
Visual inspection

Cooling system cooling fan
Items to Check Methods and Criterion
Maintenance Period
Daily Half Year One Year
Check for any abnormal sound or vibration
Visual, audible inspection, and
turn the fan by hand (turn off the
power before operation) to see if
it rotates smoothly.

Check for any loose bolts Securely tighten

Check for any color change due to
overheating
Visual inspection

Cooling system ventilation channel
Items to Check Methods and Criterion
Maintenance Period
Daily Half Year One Year
Check for any obstruction in the heat sink,
air intake or air outlet
Visual inspection

NOTE: Use a chemically neutral cloth to clean and use a dust cleaner to remove dust when necessary.

Delta VFD-ED Series Specifications

General

Brand	Delta
Model	VFD-ED Series
Category	DC Drives
Language	English