The Amada 3N‑2A is an AC servo motor equipped with a resolver for position feedback, typically used in high‑precision motion control systems such as machine tool drives or robotic arms. Common failure modes for this class of motors include phase winding insulation breakdown, brush wear on the commutator (if DC‑linked), resolver cable damage, and controller/drive communication errors due to faulty I/O signals. Initial checks should verify that the motor receives correct supply voltage and frequency, inspect the resolver wiring for continuity and proper connector seating, and review any error codes or status LEDs on the associated drive/controller for indications of encoder/resolver faults or over‑temperature conditions.[oss-gpt-20b]