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Troubleshooting and Maintenance
Component
Terminals, connectors.
Fans /Cooling systems
Printed circuit boards.
Power module/ Power
connections.
DC bus capacitors
(DC link).
Power resistors.
Heatsink.
(*) The fan of the CFW500 can be easily replaced as shown in
6.5 CLEANING INSTRUCTIONS
When it is necessary to clean the inverter, follow the instructions below:
Ventilation system:
Disconnect the power supply of the inverter and wait for 10 minutes.
„
Remove de dust accumulated in the ventilation opening using a plastic brush or cloth.
„
Remove the dust accumulated on the fins of the heatsink and fan blades using compressed air.
„
1
Release of the locks of
the fan cover
Cards:
Disconnect the power supply of the inverter and wait for 10 minutes.
„
Disconnect all the cables of the inverter, identifying all of them in order to reconnect them
„
36 | CFW500
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Table 6.3: Periodic inspection at every 6 months
Abnormality
Loose screws.
Loose connectors.
Dirty fans.
Abnormal acoustic noise.
.
Blocked fan.
(*)
Abnormal vibration.
Dust in the air filters.
Accumulation of dust, oil, humidity, etc.
Odor.
Accumulation of dust, oil, humidity, etc.
Loose connection screws.
Discoloration/ odor / electrolyte leakage.
Safety valve expanded or broken.
Frame expansion.
Discoloration.
Odor.
Accumulation of dust.
Dirt.
2
Removal of the fan
Figure 6.1: Removal of the heatsink fan
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Tighten.
Cleaning.
Replace fan.
Cleaning or replacement.
Cleaning.
Replacement.
Cleaning.
Tightening.
Replacement.
Replacement.
Cleaning.
Figure 6.1 on page
36.
3
Cable disconnection
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Corrective Action
4
Cable disconnected
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