Delta Electronics Network Device VFD-S User Manual page 151

Chapter 8 Maintenance and Inspections|VFD-S Series
Periodical Maintenance
Ambient environment
Check Items
Check the ambient temperature,
humidity, vibration and see if
there is any dust, gas, oil or
water drops
Check for any dangerous
objects near drive and motor
Voltage
Check Items
Check if the voltage of main
circuit and control circuit is
correct
Keypad
Check Items
Is the display clear for reading?
Any missing characters?
Mechanical parts
Check Items
If there is any abnormal sound
or vibration
If there are any loose screws
8-2
Methods and Criterion
Visual inspection and measurement
with equipment with standard
specification
Visual inspection
Methods and Criterion
Measure with multimeter with standard
specification
Methods and Criterion
Visual inspection
Visual inspection
Methods and Criterion
Visual and aural inspection
Tighten the screws
Maintenance
Daily
Maintenance
Daily
Maintenance
Daily
Maintenance
Daily
Revision August 2008, SE09, SW V2.61
Period
Half One
Year Year
Period
Half One
Year Year
Period
Half One
Year Year
Period
Half One
Year Year