Motor with high or low inertia rotor For application requiring stable rotating speed and better disturbance resistant capability, a high inertia motor is more suitable, such as machine tools For application like reciprocating motion and fast positioning request, a low inertia motor can be used, such as electronic manufacturing machines Low inertia motor High inertia motor Low Cogging Torque Motor Cogging torque of the ECM-A3 motor is only 1.5% of the rated torque, which brings smoother operating speed and increases the stability when machining at low speed Cogging Torque (under 1.5%) A3 A2 Supports a Variety of Servo Motors Full-Closed Loop Control Backward compatibility design for motor to meet future replacement To ensure the positioning accuracy at the end and eliminate the effect of transmission backlash, full-closed loop control function is an effective solution ASDA-A3 drive can support both A2 (ECMA) and A3 (ECM-A3) series motors Motor Encoder Signals A2 Servo Motors Linear Scale A3 Servo Motors 4