WEG Frequency Inverter - CFW-09 380-480 V CFW-09 380-480 V

Check the DC Bus Capacitors every six months

It is recommended to replace DC Bus Capacitors after five years of operation.

It is recommended to replace the blowers after each 40.000 hours of operation.

If the inverter is stored for long periods, we recommend to power it up once a year during 1 hour. For 220-230 V and 380-480 V models apply supply voltage of approximately 220 Vac, three-phase or single-phase input, 50 or 60 Hz, without connecting motor at output. After this energization, wait 24 hours before installing it. For 500-600 V, 500-690 V and 660-690 V models use the same procedure applying a voltage between 300 V and 330 Vac to the inverter input.