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Maintenance and Inspection
Outline of Maintenance
The maintenance period of the Drive is as follows:
Maintenance Period: Within 18 months of shipping from the factory or within 12 months of being delivered to
the final user, whichever comes first.
Daily Inspection
Check the following items with the system in operation.
The motor should not be vibrating or making unusual noises.
•
There should be no abnormal heat generation.
•
The ambient temperature should not be too high.
•
The output current value shown on the monitor displays should not be higher than normal.
•
The cooling fan on the bottom of the Drive should be operating normally.
•
Periodic Inspection
Check the following items during periodic maintenance.
Always turn OFF the power supply before beginning inspection. Confirm that the LCD and LED indicators on
the front cover have all turned OFF, and then wait until at least five minutes has elapsed before beginning the
inspection. Be sure not to touch terminals right after the power has been turned off. Doing so can result in
electric shock.
Item
External terminals,
mounting bolts, connec-
tors, etc.
Cooling fins
PCBs
Cooling fan
Power elements
Smoothing capacitor
-2
8
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Table 8.1 Periodic Inspections
Inspection
Are all screws and bolts tight?
Are connectors tight?
Are the fins dirty or dusty?
Is there any conductive dirt or oil mist on
the PCBs?
Is there any abnormal noise or vibration or
has the total operating time exceeded
20,000 hours?
Is there any conductive dirt or oil mist on
the elements?
Are there any irregularities, such as dis-
coloration or odor?
Corrective Procedure
Tighten loose screws and bolts firmly.
Reconnect the loose connectors.
Clean off any dirt and dust with an air gun using
dry air at a pressure of 39.2 x 10
2
(4 to 6 kg•cm
).
Clean off any dirt and dust with an air gun using
dry air at a pressure of 39.2 x 10
2
(4 to 6 kg•cm
).
Replace the boards if they cannot be made clean.
Replace the cooling fan.
Clean off any dirt and dust with an air gun using
dry air at a pressure of 39.2 x 10
2
(4 to 6 kg•cm
).
Replace the capacitor or Drive.
4
4
to 58.8 x 10
Pa
4
4
to 58.8 x 10
Pa
4
4
to 58.8 x 10
Pa
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Table of Contents
Troubleshooting
