34 | CFW501
Troubleshooting and Maintenance
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6.3 DATA TO CONTACT THE TECHNICAL ASSISTANCE
For information or service request, it is important to have at hand the following data:
Inverter model.
Serial number and manufacturing date of the product identification label (refer to
section
Software version installed (see P0023 and P0024).
Information about the application and programming executed.
6.4 PREVENTIVE MAINTENANCE
DANGER!
Always disconnect the general power supply before changing any electric
component associated to the inverter.
High voltages can be present even after the disconnection of the power
supply. Wait for at least ten minutes for the full discharge of the power
capacitors. Always connect the frame of the equipment to the protection
grounding (PE) at the proper point for that.
ATTENTION!
The electronic cards have components sensitive to electrostatic
discharges.
Do not touch directly on the components or connectors. If necessary,
first touch the grounded metallic frame or use proper grounding strap.
Do not execute any applied potential test on the inverter!
If necessary, contact WEG.
When installed in proper environment and operating conditions, the inverters require
little service.
lists the main procedures and intervals for routine maintenance.
suggests inspections on the product every 6 months after startup.
Table 6.2:
Preventive maintenance
Maintenance
Interval
Instructions
Fan replacement
After 40,000 hours of operation.
Replacement
Electrolytic
capacitors
If the inverter is
stocked (not in
use):
“Reforming”
Every year from the manufacturing
date printed on the inverter
identification label (refer to section
Apply power to the inverter with
voltage between 220 and 230 Vac,
single-phase or three-phase, 50 or
60 Hz, for at least one hour. Then,
disconnect the power supply and
wait for at least 24 hours before
using the inverter (reapply power).
Inverter being
used: replace
Every 10 years.
Contact WEG technical support to
obtain replacement procedure.