The Axor Minispeed MS‑140 is a Eurocard‑formatted DC brushed servo drive rated for up to 25 A output current and operating from 20 Vdc to 275 Vdc, commonly used in low‑power incremental motion control systems. Common failure points for this class of drives include MOSFET/IGBT gate driver damage, overheating of the power stage due to inadequate heat sinking, and degradation of the PWM controller ICs; additionally, mechanical wear can affect the tachogenerator or encoder feedback if present. First‑check diagnostics should verify that the input supply voltage is within spec and stable, inspect the drive board for visible signs of thermal stress or component damage, and review any displayed error codes or LED status indicators before proceeding with deeper troubleshooting.[oss-gpt-20b]