WEG ECW500, User Manual

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Maintenance .
ECW500 | 71
11 MAINTENANCE
This chapter contains maintenance recommendations for the ECW500.
11.1 DIAGNOSIS OF FAULTS, ERRORS AND MESSAGES
Refer to Chapter 2 Errors, Warnings and Events for more details about the error and warning messages
generated by ECW500.
11.2 TECHNICAL ASSISTANCE
If you have any question about service, contact the
technical assistance.
The contact channels are on the website http://www.weg.net , according to the country or region where the
assistance is needed.
NOTE!
For consults or service requests, it is important to have the following data at hand:
■ Model of the ECW500;
■ Serial number, manufacturing date and hardware revision indicated on the nameplate of the
product;
■ Version of the software installed;
■ Data on the application programming executed.
11.3 PREVENTIVE MAINTENANCE
DANGER!
■ Always disconnect the power before touching any electrical component in connection with the
ECW500.
■ High voltages may be present even after disconnecting the power supply.
■ Wait for at least 20 minutes for the full discharge of the power capacitors.
■ Always connect the equipment frame to the protective earth (PE) in the appropriate place.
ATTENTION!
Electronic boards have components sensitive to electrostatic discharges. Do not touch directly any
of the components or connectors. If necessary, first touch the metallic frame or use a suitable
grounding strap.
When installed in environments with appropriate operating conditions (refer to section 5.2.1 Environmental
Conditions), the ECW500 requires little maintenance. The main verifications are:
■ keep electrical connections clean and tight;
■ keep the product clean by removing accumulations of dust, oil, humidity of the electronic boards, spaces for
ventilation and heatsink.
The following table lists the main periodic inspections recommended for the product.
Table 11.1 Periodic inspections recommended for the ECW500
Component Abnormality Corrective Action
Terminals, connectors Loose screws, loose connectors Tighten
Printed circuit electric boards
Build up of dust, humidity, oils, etc Clean
Smell Replace
Capacitors of DC link (intermediary circuit)
Discoloration, smell, leak of electrolyte
Replace
Safety valve expanded or broken
Heatsink Buildup of dust, other debris Clean