Elbag WSMS4.8 is a 230 V, 50/60 Hz servo drive rated at 320 VA with RS‑232 communication and a typical two‑year warranty. Common failure points for this class of drives include over‑temperature shutdowns from poor ventilation, power supply ripple or voltage spikes damaging the internal regulator, and degradation of the MOSFET bridge or gate driver ICs under high current loads. Initial checks should verify that the input voltage is within spec, inspect the drive’s heat sink and fan for dust accumulation, and confirm that all RS‑232 and I/O terminals are free from corrosion or loose connections; then review any logged error codes for indications of thermal or overcurrent faults.[oss-gpt-20b]