TDE DSC‑20N/B0 is a 240 V industrial servo drive used in CNC and motion control applications. Common failures on this model include power supply board degradation (brown‑out capacitors), overheating of the internal MOSFET array, and loss of communication with the host controller due to faulty UART/RS‑232 interfaces. For all TDE drives, typical failure points are the input filter network, the main driver IC, and the motor‑feedback encoder circuitry. Initial diagnostics should verify 240 V AC supply integrity, inspect for burnt or swollen components on the power board, and check the drive’s diagnostic LEDs or error code register for indications of overcurrent or communication faults.[oss-gpt-20b]