Contacting Weg; Preventive Maintenance - WEG CFW-09 User Manual

7.3 CONTACTING
WEG
7.4 PREVENTIVE
MAINTENANCE
COMPONENT
Terminal Blocks, Connectors
Blowers (1) / Cooling System
Printed Circuit Boards
(3)
Power Module / Power Connections
(2)
DC Bus Capacitors
Power Resistor
CHAPTER 7 - DIAGNOSTICS AND TROUBLESHOOTING
NOTE!
When contacting WEG for service or technical assistance, please have the
following data on hand:
Inverter Model;
Serial number, manufacturing date and hardware revision, as indicated
on the inverter nameplate (Refer to item 2.4);
Software Version (Refer to item 2.2);
Information about the application and inverter programming.
DANGER!
Always disconnect the power supply voltage before touching any component
of the inverter.
Even after switching OFF the inverter, high voltages may be present. Wait 10
minutes to allow complete discharge of the power capacitors.
Always connect the equipment frame to a suitable ground (PE) point.
ATTENTION!
Electronic boards have components sensitive to electrostatic discharges.
Never touch the components or connectors directly. If this is unavoidable, first
touch the metallic frame or use a suitable ground strap.
Never apply a high voltage test on the inverter!
If this is necessary, contact WEG.
To avoid operation problems caused by harsh ambient conditions, such as
high temperature, moisture, dirt, vibration or premature aging of the components,
periodic inspections of the inverter and installations are recommended.
PROBLEMS
Loose screws
Loose connectors
Blowers are dirty
Abnormal acoustic noise
Blower is not running
Abnormal vibration
Dust in the air filters
Dust, oil or moisture accumulation
Smell
Dust, oil or moisture accumulation, etc.
Connection screws are loose
Discoloration / smell / electrolyte leakage
Safety valve is expanded or broken
Deformation
Discoloration
Smell
Table 7.3 - Periodic inspections after start-up
CORRECTIVEACTIONS
Tighten them
Clean them
Replace the blower
Clean or replace them
Clean them
Replace them
Clean them
Tighten them
Replace them
Replace it
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