CFW701 | 35
Troubleshooting and Maintenance
English
Table 6.3: Recommended periodic inspections - Every 6 months
Component Abnormality Corrective Action
Terminals, connectors Loose screws Tighten
Loose connectors
Fans /Cooling systems Dirty fans Cleaning
Abnormal acoustic noise Replace the fan. Refer to the
Figure 6.1 on page 36 and
Figure 6.2 on page 36.
Check the fan connections.
Blocked fan
Abnormal vibration
Dust in the panel air filters Cleaning or replacement
Printed circuit boards Accumulation of dust, oil, humidity, etc. Cleaning
Odor Replacement
Power module/ Power
connections
Accumulation of dust, oil, humidity, etc. Cleaning
Loose connection screws Tightening
Capacitors of the DC link
(Intermediate Circuit)
Discoloration/ odor / electrolyte leakage Replacement
Safety valve expanded or broken
Frame expansion
Power resistors Discoloration Replacement
Odor
Heatsink Accumulation of dust Cleaning
Dirt
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 at least 10 minutes.
Remove the dust from the cooling air inlet by using a soft brush or a flannel.
Remove the dust from the heatsink fins and from the fan blades by using compressed air.
Electronic boards:
Disconnect the inverter power supply and wait at least 10 minutes.
Remove the dust from the electronic board by using an anti-static brush or an ion air gun
(Charge Buster Ion Gun - reference A6030-6DESCO).
If necessary, remove the boards from the inverter.
Always wear a ground strap.
To Next Page
Loading...
