Page 6–6
DuRApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Chapter 6: Maintenance and Troubleshooting
Recommended Inspection Schedules (continued)
Resistor of main circuit
Check Items Methods and Criteria
Maintenance Period
Daily
Half
Year
One
Year
If there is any peculiar smell or
insulation cracks due to overheating
Visual inspection, smell
If there is any disconnection or
discoloration
Visual inspection
If the connection is damaged
Measure with a multimeter
with standard specifications
Transformer and reactor of main circuit
Check Items Methods and Criteria
Maintenance Period
Daily
Half
Year
One
Year
If there is any abnormal vibration or
peculiar smell
Visual, audible inspection and
smell
Magnetic contactor and relay of main circuit
Check Items Methods and Criteria
Maintenance Period
Daily
Half
Year
One
Year
If there are any loose screws Visual and audible inspection
If the contact works correctly Visual inspection
Printed circuit board and connector of main circuit
Check Items Methods and Criteria
Maintenance Period
Daily
Half
Year
One
Year
If there are any loose screws and
connectors
Tighten the screws and press
the connectors firmly in place
If there is any peculiar smell and/or
color change
Visual and smell inspection
If there is any crack, damage,
deformation or corrosion
Visual inspection
If there is any liquid leakage or
deformation in capacity
Visual inspection