The Indramat TVD 1.2‑08‑03 is a 7.5 kW continuous/22.5 kW peak AC servo power‑supply module that delivers a 320 V DC bus to drive and control units via a ribbon cable, with built‑in monitoring of motor feedback, current, temperature, and line voltage. Common failure points for this class include overloaded or overheated filters (NAM modules), degraded rectifier diodes, failing MOSFETs in the DC supply section, and insulation breakdown between AC input and internal components. First‑check diagnostics: verify 380–480 V AC input is present and within spec; measure the DC bus voltage and current to confirm proper conversion; inspect for excessive heat or visual signs of component failure on the module and its associated filter; review any error codes or diagnostic LEDs displayed by the drive controller.[oss-gpt-20b]