TROUBLESHOOTING AND MAINTENANCE
Table 5.3:
Recommended periodic inspections - every 6 months
Component
Abnormality
Corrective Action
Terminals, connectors
Loose screws
Tighten
Loose connectors
Fans / Cooling systems
(*)
Dirty fans
Clean
Abnormal acoustic noise
Replace the fan
Blocked fan
Clean or replace
Abnormal vibration
Dust in the cabinet air filter
Printed circuits boards
Accumulation of dust, oil, humidity, etc.
Clean
Odor
Replace
Power module / Power
connections
Accumulation of dust, oil, humidity, etc.
Clean
Loose connections screws
Tighten
DC Link Capacitors
Discoloration / odor / electrolyte leakage
Replace
Expanded or broken safety valve
Frame size expansion
Power resistors
Discoloration
Replace
Odor
Heatsink
Accumulation of dust
Clean
Dirt
(*)
The CFW320 fan can be easily replaced as shown in
5.5 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
Chapter 3 INSTALLATION AND CONNECTION on
and
APPENDIX B - TECHNICAL SPECIFICATIONS on page 45
Remove the dust accumulated on the cards using and anti-static brush using and/or ion compressed air gun.
Always use grounding strap.
CFW320 | 29
