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VLT
®
Soft Starter Pocket Guide
19
To assist your service engineer, they require the following information:
Model and serial number of the soft starter
•
Motor kW and FLC
•
Main supply voltage and frequency
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Control voltage
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Application (e.g. pump, compressor)
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Time installed before failure
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Details of other soft starters on the supply bus. Are these failing?
•
If the soft starter trips, details of the code and mode of operation
•
The installation’s power and control schematic diagram
•
Fault fi nding: What are the key questions?
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