TDE Macno DVET22KWS2 is a high‑current servo amplifier used in CNC and industrial motion systems, typically rated for up to 22 A output with a 24 V or higher power supply. Common failure modes on this model include over‑temperature shutdown due to inadequate cooling, phase‑to‑phase short circuits in the MOSFET array, and loss of communication from the serial/analog I/O bus when firmware is corrupted or voltage spikes occur. For initial troubleshooting, verify that the main supply rail is within spec and that all heat sinks are clean; check the status LEDs or diagnostic register for fault codes; then inspect the MOSFETs and gate driver traces for burn marks or excessive resistance. If no obvious hardware damage is found, perform a firmware integrity check and reset to default parameters before re‑engaging the drive.[oss-gpt-20b]