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MAINTENANCE
PRECAUTIONS
ROUTINE INSPECTION
PERIODICAL INSPECTION
8 - TROUBLESHOOTING & MAINTENANCE
8.1 Maintenance
Proper operation of the RSi S4 Series of drives can be inuenced by temperature, humidity, and vibration. To avoid any
possible uncertainty, the drive must be maintained properly by certied personnel.
8.2 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 rectier 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.
8.3 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 •
8.4 Periodical Inspection
Are there any loose bolts, nuts or rust caused by surrounding conditions? If so, tighten or replace them. •
Are there any deposits inside the drive-cooling fan? If so, remove using compressed air. •
Are there any deposits on the drive’s PCB (Printed Circuit Boards)? If so, remove using compressed 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.
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