Preventive Maintenance - WEG CFW-11 User Manual

6.5 PREVENTIVE MAINTENANCE

DANGER!
Always turn off the mains power supply before touching any electrical component associated to
the inverter.
High voltage may still be present even after disconnecting the power supply.
To prevent electric shock, wait at least 10 minutes after turning off the input power for the complete
discharge of the power capacitors.
Always connect the equipment frame to the protective ground (PE). Use the adequate connection
terminal in the inverter.
DANGER!
Débranchez toujours l'alimentation principale avant d'entrer en contact avec un appareil électrique
associé au variateur.
Des tensions élevées peuvent encore être présentes, même après déconnexion de l'alimentation.
Pour éviter les risques d'électrocution, attendre au moins 10 minutes après avoir coupé
l'alimentation d'entrée pour que les condensateurs de puissance soient totalement déchargées.
Raccordez toujours la masse de l'appareil à une terre protectrice (PE). Utiliser la borne de connexion
adéquate du variateur.
ATTENTION!
The electronic boards have electrostatic discharge sensitive components.
Do not touch the components or connectors directly. If needed, first touch the grounded mettalic
frame or wear a ground strap.
The inverters require low maintenance when properly installed and operated.
main procedures and time intervals for preventive maintenance.
periodic inspections to be performed every 6 months after inverter start-up.
Maintenance
Fan replacement
Keypad battery replacement
Electrolytic If the inverter is stocked (not
capacitors being used):
"Reforming"
Inverter is being used:
replace
(1) The inverters are set at the factory for automatic fan control (P0352 = 2), which means that they will be turned on only when the heatsink temperature
exceeds a reference value. Therefore, the operating hours of the fan will depend on the inverter usage conditions (motor current, output frequency, cooling
air temperature, etc.). The inverter stores the number of fan operating hours in the parameter P0045. When this parameter reaches 50000 operating hours,
the keypad display shows the alarm A177.
Do not perform any withstand voltage test!
If needed, consult WEG.
Table 6.3 - Preventive maintenance
Interval
After 50.000 operating hours
Every 10 years
Every year from the manufacturing date
printed in the inverter identification label
(refer to Section 2.4 IDENTIFICATION
LABELS FOR THE CFW-11 on page
2-8)
Every 10 years
Troubleshooting and Maintenance
Table 6.3 on page 6-9
Table 6.4 on page 6-10
Replacement procedure shown in
(1)
and Figure 6.2 on page 6-11
Refer to Chapter 4 HMI on page 4-1
Apply power to the inverter (voltage between 200 and
230 Vac, single-phase or three-phase, 50 or 60 Hz) for at
least one hour. Then, disconnect the power supply and wait
at least 24 hours before using the inverter (reapply power)
Contact WEG technical support
presents
provides recommended
Instructions
Figure 6.1 on page 6-11
CFW-11 | 6-9
6