TROUBLESHOOTING AND MAINTENANCE
5.3 INFORMATION NECESSARY FOR CONTACTING TECHNICAL SUPPORT
For technical support or servicing, it is important to have the following information in hand:
Inverter model.
Serial number and manufacturing date listed in the product nameplate (refer to
Installed Software version (refer to P023).
Data on the application and inverter settings.
5.4 PREVENTIVE MAINTENANCE
!
DANGER!
Always turn off the mains power supply before touching any electrical component associated to the
inverter.
High voltages may still be present even after disconnecting the power supply.
To prevent electric shock, wait at least ten minutes after turning off the input power for the complete
discharge of the power capacitors. Always connect the equipment frame size to the protective ground
(PE). Use the adequate connection terminal at the inverter.
!
DANGER!
Toujours couper l’alimentation électrique avant de toucher les composants électriques de l’onduleur.
Des hautes tensions peuvent encore être présentes même après la déconnexion de l’alimentation.
Pour éviter tout choc électrique, attendez au moins 10 minutes après la mise hors tension de la
puissance d’entrée pour la décharge complète de la puissance des condensateurs. Branchez
toujours l’équipement Taille de cadre à la terre de protection (PE). Utilisez la borne de connexion
adéquat à l’onduleur.
!
ATTENTION!
The electronic boards have electrostatic discharge sensitive components.
Do not touch the components or connectors directly. If necessary, first touch the grounded metallic
frame size or wear a ground strap.
Do not perform any withstand voltage test: if necessary, consult WEG.
The inverters require low maintenance when properly installed and operated.
presents the
main procedures and time intervals for preventive maintenance.
provides recommended
periodic inspections to be performed every 6 months after the inverter start-up.
Table 5.2:
Preventive maintenance
Maintenance
Interval
Instructions
Fan replacement
After 40.000 operating hours
Replacement
Electrolytic
capacitors
If the inverter
is stocked (not
being used):
“Reforming”
Every year from the
manufacturing date printed on
the inverter identification label
(refer to
Apply power to the inverter according to the model of inverter
(voltage between 220 and 230 Vac, single-phase/three-phase
or DC, 50 or 60Hz) for at least one hour. Then, disconnect the
power supply and wait at least 24 hours before using the
inverter (reapply power)
Inverter is being
used: replace
Every 10 years
Contact WEG technical support to obtain
replacement procedures
28 | CFW320
