When analyzing servo motor error codes like 'overload' or 'encoder fault', what diagnostic tools and techniques separate mechanical issues from electrical problems?

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When I&#39;m troubleshooting servo motor error codes like &#39;overload&#39; or &#39;encoder fault&#39;, I&#39;ve found that distinguishing between mechanical and electrical issues requires a systematic approach with the right tools. For electrical problems, I typically start with a multimeter to check voltage levels and continuity, then use an oscilloscope to examine encoder signals - looking for clean square wave patterns when rotating the shaft manually. Mechanical issues often reveal themselves through physical inspection - I check for bearing wear, excessive vibration, or binding in the mechanical load. The key is that electrical faults usually show up in signal analysis and voltage measurements, while mechanical problems manifest as physical resistance, unusual noises, or temperature spikes. Modern servo drives also provide detailed fault histories that can pinpoint whether the issue started with current spikes (electrical) or friction-related overheating (mechanical).

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When analyzing servo motor error codes like 'overload' or 'encoder fault', what diagnostic tools and techniques separate mechanical issues from electrical problems?

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