Cleaning Instructions - WEG CFW700 Serie Manual Del Usuario

Component
Terminals, connectors
Fans /Cooling systems
Printed circuit boards
Power module/ Power
connections
Capacitors of the DC link
(Intermediate Circuit)
Power resistors
Heatsink

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.
„
Electronic boards:
„
- Disconnect the power supply of the inverter and wait for 10 minutes.
Remove the dust accumulated on the boards using an anti-static brush or ion compressed
„
air gun (Example: Charge Buster Ion Gun (non nuclear) reference A6030-6DESCO).
If necessary, remove the boards from the inverter.
Always use grounding strap.
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 panel 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
Troubleshooting and Maintenance
Corrective Action
Tighten
Cleaning
Replace fan. See Figure 6.1
on page 58 and Figure 6.2
on page 58. Check fan
connections
Cleaning or replacement
Cleaning
Replacement
Cleaning
Tightening
Replacement
Replacement
Cleaning
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