Recommended Periodic Inspections - Every 6 Months; Cleaning Instructions - WEG CFW300 User Manual

Table 6.3: Recommended periodic inspections - every 6 months
Component
Terminals, connectors
Fans / Cooling systems
(*)
Printed circuits boards
Power module / Power
connections
DC Link capacitors
Power resistors
Heatsink
(*) The CFW300 fan 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 inverter power supply and wait for 10 minutes.
„
Remove the dust from the cooling air inlet by using a soft brush or cloth.
„
Remove the dust from the fan blades by using compressed air.
„
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
„
correctly.
Remove the plastic cover and the plug-in module (refer to
„
CONNECTION on page 9
113).
Remove the dust accumulated on the cards using and anti-static brush using and/or ion
„
compressed air gun.
Always use grounding strap.
„
Abnormality
Loose screws
Loose connectors
Dirty fans
Abnormal acoustic noise
Blocked fan
Abnormal vibration
Dust in the cabinet air filter
Accumulation of dust, oil, humidity, etc.
Odor
Accumulation of dust, oil, humidity, etc.
Loose connections screws
Discoloration / odor / electrolyte leakage
Expanded or broken safety valve
Frame size expansion
Discoloration
Odor
Accumulation of dust
Dirt
Figure A5 on page 112.
and APPENDIX B - TECHNICAL SPECIFICATIONS on page
Troubleshooting and Maintenance
Corrective Action
Tighten
Clean
Replace the fan
Clean or replace
Clean
Replace
Clean
Tighten
Replace
Replace
Clean
Chapter 3 INSTALLATION AND
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