The Seco M3230‑100000 is a compact industrial DC servo drive used for precise motor control in CNC machines and automation lines. Common failure modes for this class include power supply degradation (over‑current or voltage spikes), phase winding shorts, controller board overheating, and encoder signal loss due to cable wear or connector corrosion. Begin troubleshooting by verifying the input voltage and current against spec, inspecting the drive’s internal fuses and cooling fan, checking all I/O connectors for continuity and proper polarity, and reviewing any stored error codes on the drive’s diagnostic display. If fault codes indicate “phase failure” or “over‑temperature,” replace the affected winding or cooling component before proceeding with further diagnostics.[oss-gpt-20b]