The TM5‑015i‑1P is a three‑phase variable frequency drive cube manufactured by Advanced Drive Technology, model 48691‑109, designed for industrial induction motor control with integrated IFT (Integrated Frequency Transformer) features. Common failure points in this class of drives include overheating due to inadequate ventilation or cooling fan failure, capacitor degradation on the power input stage, insulation breakdown in the motor winding interface, and firmware corruption that can trigger fault codes such as “E01” or “E02”. Initial troubleshooting should verify proper 480 V AC supply with a calibrated multimeter, inspect the drive’s temperature gauge and ensure airflow around the heat sink is unobstructed, check the status LEDs for any error indications, and review the event log via the serial or Ethernet interface for recent fault entries.[oss-gpt-20b]