Maintenance; Precautions; Routine Inspection; Periodical Inspection - LG SV008iS5-2 Bedienungsanleitung

5.5 Maintenance

The iS5 series is an industrial electronic product with advanced semiconductor elements. However, temperature,
humidity, vibration and aging parts may still affect it. To avoid this, it is recommended to perform routine
inspections.
5.5.1

Precautions

Be sure to remove the drive power input while performing maintenance.
Be sure to perform maintenance only after checking that the bus has discharged. The bus capacitors in the
electronic circuit can still be charged even after the power is turned off.
The correct output voltage can only be measured by using a rectifier voltage meter. Other voltage meters,
including digital voltage meters, are likely to display incorrect values caused by the high frequency PWM
output voltage of the drive.
5.5.2

Routine Inspection

Be sure to check the following before operation:
The conditions of the installation location
The conditions of the drive cooling
Abnormal vibration
Abnormal heating
5.5.3

Periodical Inspection

Are there any loose bolt, nut or rust caused by surrounding conditions? If so, tighten them up or replace
them.
Tighten up or replace.
Are there any deposits inside the drive-cooling fan? If so, remove using air.
Are there any deposits on the drive's PCB (Printed Circuit Boards)? If so, remove using air.
Are there any abnormalities in the various connectors of the drive's PCB? If so, check the condition of the
connector in question.
Check the rotating condition of the cooling fan, the size and condition of the capacitors and the connections
with the magnetic contactor. Replace them if there are any abnormalities.
5.5.4

Internal Fuse Replacement

When the internal fuse is opened the IGBT's should be checked thoroughly before replacing the fuse.
Contact the factory for replacement fuse information.
All manuals and user guides at all-guides.com
81
Chapter 5 - Troubleshooting & Maintenance