WEG CFW700 User Manual - page 60
CFW700 | 55
Troubleshooting and Maintenance
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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.
1
2
3
Release of the locks of
the fan cover
Removal of the fan
Cable disconnection
(a) Models of frame sizes A, B, C, D and model 105 A / 380 / 480 V
1
2
3
Removal of the fan grid
screws
Removal of the fan
Cable disconnection
(b) Models 142 A, 180 A and 211 A / 220 / 230 V and 380 / 480 V and all the models of 500 / 600 V
Figure 6.1: (a) and (b) Removal of the heatsink fan