Chapter 6. Suggestions and Error Corrections for Hybrid Servo DrivesC | VFD-VJ
6-2
6-1 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 25V
DC
.
Ambient environment
Check Items Methods and Criterion
Maintenance
Period
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
Check Items Methods and Criterion
Maintenance
Period
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
Check Items Methods and Criterion
Maintenance
Period
Daily
Half
Year
One
Year
Is the display clear for reading Visual inspection
○
Any missing characters Visual inspection
○
Mechanical parts
Check Items Methods and Criterion
Maintenance
Period
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
○
If plastic between couplings are damaged Visual inspection
○