Delta Electronics AC Motor Drive VFD-EL User Manual page 170

Vfd-el multiple functions / micro type ac motor drive
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Transformer and reactor of main circuit
Check Items
If there is any abnormal vibration
or peculiar smell
Magnetic contactor and relay of main circuit
Check Items
If there are any loose screws
If the contact works correctly
Printed circuit board and connector of main circuit
Check Items
If there are any loose screws and
connectors
If there is any peculiar smell and
color change
If there is any crack, damage,
deformation or corrosion
If there is any leaked liquid or
deformation in capacitors
Revision August 2008, 2ELE, V1.02
Chapter 6 Fault Code Information and Maintenance|
Methods and Criterion
Visual, aural inspection and smell
Methods and Criterion
Visual and aural inspection. Tighten
screw if necessary.
Visual inspection
Methods and Criterion
Tighten the screws and press the
connectors firmly in place.
Visual inspection and smell
Visual inspection
Visual inspection
Maintenance
Period
Half
One
Daily
Year
Year
Maintenance
Period
Half
One
Daily
Year
Year
Maintenance
Period
Half
One
Daily
Year
Year
6-9

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