Delta Electronics VFD037CB43A-20 [354/363] 1 maintenance and inspections

Delta Electronics VFD037CB43A-20 [354/363] 1 maintenance and inspections
Chapter 15 Suggestions and Error Corrections for Standard AC Motor Drives |C200 Series
15-2
15-1 Maintenance and Inspections
Before the check-up, always turn off the AC input power and remove the cover. Wait at least 10
minutes after all display lamps have gone out, and then confirm that the capacitors have fully
discharged by measuring the voltage between DC+ and DC-. The voltage between DC+ and
DC-should be less than 25VDC.
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
Digital Keypad Display
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
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

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