SGMG-05A2RAS belongs to Yaskawa Sigma-I SGMG medium inertia AC servo motor, rated output power 450W, 200V AC voltage grade, matched original servo driver SGDB-05AD / SGDB-05ANA. Model suffix breakdown: R stands for straight smooth shaft without keyway, AS denotes standard incremental pulse encoder configuration, built-in no electromagnetic holding brake, Japan original manufacture.

The motor receives three-phase AC200V power output from matched servo driver. Rated continuous operating current is 3.8A, rated rotating speed 1500rpm, continuous rated torque 2.87N·m, instantaneous peak torque reaches three times rated value at roughly 8.61N·m. Equipped with standard incremental optical encoder, insulation class F, fully enclosed natural cooling construction, protection grade IP65 except shaft penetration part. Standard working ambient temperature ranges from 0℃ to 40℃; continuous operation above 40℃ needs load derating. Ambient relative humidity keeps 20%~80% without dew condensation. Full-load running is available under altitude below 1000 meters; load reduction is required for installation over 1000 meters elevation. It passes AC1500V one-minute dielectric withstand test, insulation resistance exceeds 10MΩ when measured with DC500V testing voltage.

Cut off all total input power completely before wiring, installation, disassembly or maintenance operation to prevent electric shock hazard and internal winding burnout. Never connect commercial mains AC directly onto motor U/V/W power terminals; wrong direct mains connection will burn motor coil instantly.

Only assemble with original SGDB series Sigma-I dedicated servo drive; mismatching with SGDM, SGDH or other different-series drivers will trigger persistent encoder or overcurrent fault alarm and fail normal startup. Do not install motor in surroundings with flammable gas, corrosive steam, dense dust or continuous liquid splashing. Long-time overloaded operation exceeding rated torque is forbidden to avoid winding overheat and permanent insulation aging. Fix motor position away from sustained strong vibration and long-term direct sunlight exposure, guarantee unobstructed surrounding airflow for effective heat dissipation.

Motor three power terminals U, V, W connect separately to corresponding main output terminals of SGDB-05AD driver; PE protective ground terminal must link reliably to equipment earth wire for safety protection. Incremental encoder cable plug inserts into driver CN2 encoder socket, exclusive shielded dedicated cable is required, maximum permitted wiring distance is within 20 meters. Incorrect pin connection or loose plug will immediately activate driver encoder fault alarm and servo cannot switch to ready state.

Adopt standard flange mounting way for motor fixing. Since this model is R-type smooth shaft without parallel key, when coupling with mechanical load shaft, strictly control coaxial error below 0.1mm to avoid excessive radial pulling force and axial thrust damaging internal bearing and encoder components. Fasten all mounting bolts with designated tightening torque to prevent bolt loosening during high-speed reciprocating running.

Double check correctness of power wiring and encoder wiring before switching driver power supply. After power-on, input corresponding motor parameter codes inside SGDB driver per SGMG-05A2RAS 450W specification and incremental encoder setting mode. Complete automatic motor parameter identification and system inertia auto-tuning procedure on servo driver. Switch servo into JOG jog mode to perform forward and reverse trial rotation, inspect no abnormal mechanical noise, vibration or jitter during low-speed running. Proceed to formal automatic production operation only after zero fault alarm in whole trial test.

OV overvoltage alarm mainly comes from abnormal input power fluctuation or excessive regenerative feedback energy; measure input AC voltage and install external regenerative resistor if needed. OC overcurrent alarm occurs from U/V/W wire short-circuit or internal motor winding short damage; check cable insulation integrity and coil continuity. Encoder fault alarm relates to loose encoder connector, broken inner core of connecting cable or encoder internal circuit damage; replace damaged cable or repair plug accordingly. OT overheat alarm is caused by poor ventilation or long-term overload running; optimize surrounding heat dissipation condition and decrease continuous actual load torque.

Full official English general manual for all SGMG Sigma-I series is Yaskawa S Series User Manual (total 284 pages), covering SGMG full range models including SGMG-05A2RAS, downloadable from Yaskawa official global website legacy servo document library.