The TDE DSC20N/B0 is a 3‑phase servo drive rated for 180–240 VAC, 20 A current and operating at 45–65 Hz, commonly used in CNC machines and industrial motion control systems. Known failure points for this class include power supply over‑voltage or ripple damage to the IGBT array, insulation breakdown of the motor windings, and degradation of the internal protection ICs due to thermal cycling. First‑check diagnostics should verify that the input voltage is within spec and free of spikes, inspect all wiring and connectors for corrosion or loose contacts, and review any diagnostic error codes or fault logs displayed on the drive’s panel or via its communication interface.[oss-gpt-20b]