Preventive Maintenance - WEG DBW04 Serie Manual Del Usuario

5.3 PREVENTIVE MAINTENANCE

DANGER!
Always turn off the mains power supply before touching any electrical
„
component associated to the braking module.
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 at the braking module.
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 or wear a ground strap.
Do not perform any withstand voltage test!
When installed in proper environment and operating conditions, the braking modules require
little maintenance.
Table 5.2: Recommended periodic inspections - every 6 months
Component
Terminals, connectors
Fans / Cooling system
Printed circuit boards
Power module /
Power connections
Heatsink
If necessary, consult WEG.
Abnormality
Loose screws
Loose connectors
Dirty fans
Abnormal acoustic noise
Blocked fan
Abnormal vibration
Dust in the cabinet air filter
Dust in the cabinet air filter
Odor
Accumulation of dust, oil, humidity, etc.
Loose connection screws
Dust accumulation
Dirty
Faults
Corrective Action
Tighten
Cleaning
Replace the fan. Refer to the
Figure 5.1 on page 28. Check
the fan connections.
Cleaning or replacement
Cleaning
Replacement
Cleaning
Tighten
Cleaning
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