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    730W (2000 rpm) Brushless AC Servo Motor

    High precision 730 Watt AC servo motor with lower cost, 2000 rpm, 3.5 Nm, available in a 60mm square flange size. It is widely used in factory automation, embroidery machines, printing machinery, CNC machine, wood carving and other fields.
    SKU: ATO80ST-M03520
    Free shipping
    Delivery date: 6-12 days

    220V AC single or three-phase input, Brushless design servo motor, power ratings up to 730W, rated speed of 2000rpm, maximum speed up to 5000rpm, low noise and vibration when rotating. Reasonable price and manufacturer direct sale.

    730W Servo Motor Specification

    Basics Model ATO80ST-M03520
    Weight 3.9 Kg
    Length 179 mm
    Rated Power 730 W
    Rated Voltage 220V AC
    Rated Current 3 A
    Peak Current 9 A
    Rated Speed 2000 rpm
    Rated Torque 3.5 N.m
    Peak Torque 10.5 N.m
    Technical Parameters Voltage Constant 71 V/ 1000r/ min
    Torque Coefficient 1.17 N.m/ A
    Torque Inertia 2.63 x 10-4 Kg.M2
    Line-Line Resistance 3.65 Ω
    Line-Line Inductance 8.8 mH
    Electrical Time-Constant 2.4 ms
    Encode Line Number 2500
    Insulation Class Class F
    Safety Class IP65
    Environment Temperature -20℃ ~ +40℃
    Humidity <90%RH, (no dewing)

    Motor Dimension
    servo motor 80 dimension
    Tips: Three loop control of servo motor
    Normally servo is three loop control. "Three loop" means three closed loop negative feedback PID adjusting system.

    1. The most inner PID loop is electrical current loop. This loop completely operates inside servo driver, through hall device to inspect each phase output current from driver to motor, negative feedback makes PID adjustment for current set up, then output current would get close or equal to set up current value. Current loop controls motor torque, therefore, under torque mode, driver calculation amount is the minimum, dynamic response is the fastest.
    2. The second loop is speed loop, through checking motor coder signal to make negative feedback PID adjustment, its inner loop PID output is current loop set up, therefore, speed loop control including speed loop and current loop. In other words, any mode must use current loop, current loop is the base of control. While under speed control and position control, system is also making current (torque) control, in order to achieve relative control for speed and position.
    3. The third loop is position loop, it’s the most outside loop. It can be built between driver and motor coder, or built between exterior controller and motor coder or final loading, this should be up to actual condition. As position control loop inside output is speed loop set up, under position control mode, system makes calculation for all 3 loops, at the time system has the maximum calculation amount, dynamic response speed is the slowest.
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