YASKAWA AC SERVO MOTOR SGMJV-08A3A-SU11 High Precision

The SGMJV-08A3A-SU11 is a high-performance AC servomotor designed for precision motion control applications in industrial automation. It is part of Yaskawa's Sigma-5 servo system, which is known for its high efficiency, reliability, and advanced control capabilities.

Key Features:

• Model: SGMJV-08A3A-SU11

• Motor Type: AC Servo Motor

• Series: Sigma-5 Series

• Rated Power: 0.75 kW (0.8 HP)

• Rated Speed: 3000 RPM (Revolutions Per Minute)

• Rated Torque: 2.4 Nm (Newton-meters)

• Encoder Type: Incremental Encoder for high-precision feedback control

• Protection Class: IP67 (dustproof and waterproof), making it suitable for harsh industrial environments.

Technical Specifications:

• Voltage Rating: 200-240 V (AC)

• Current Rating: 4.3 A (continuous)

• Cooling Type: Air-cooled

• Feedback System: High-resolution encoder that provides real-time feedback to ensure precise position and speed control.

• Size: Compact design for easy integration into existing systems, making it suitable for applications with limited space.

Benefits:

• High Precision: The Sigma-5 servo motor delivers highly accurate speed, position, and torque control, making it ideal for applications requiring fine motion control.

• Energy Efficiency: With advanced control technologies, this motor minimizes energy consumption while maintaining performance.

• Durability: The IP67-rated protection ensures reliable operation in environments with high dust, moisture, or contaminants.

• Easy Integration: Compatible with Yaskawa's Sigma-5 servo amplifiers for a complete motion control system.

Applications:

The SGMJV-08A3A-SU11 is commonly used in applications such as:

• Robotics

• CNC machines

• Packaging systems

• Printing machines

• Food processing

• Textile machinery

This servo motor is particularly useful in systems requiring fast response times and high-precision control, such as high-speed machining or robotics.

Conclusion:

The SGMJV-08A3A-SU11 servo motor provides high performance, precision, and reliability, making it an excellent choice for industrial automation applications that require accurate and efficient motion control.

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Stepping Modes
The following are the most common drive modes.
• Wave Drive (1 phase on)
• Full Step Drive (2 phases on)
• Half Step Drive (1 & 2 phases on)
• Microstepping (Continuously
varying motor currents)
For the following discussions please refer to the figure 6.
In Wave Drive only one winding is energized at any given time. The stator is energized according to the
sequence A → B → A → B and the rotor steps from position 8 → 2 → 4 → 6. For unipolar and bipolar wound  motors with the same winding parameters this excitation mode would result in the same mechanical position. The disadvantage of this drive mode is that in the unipolar wound motor you are only using 25% and in the bipolar motor only 50% of the total motor winding at any given time. This means that you are not getting the maximum torque output from the motor
 
 
 
 
In Full Step Drive you are energizing two phases at any given time. The stator is energized according to
the sequence AB → AB → AB → AB and the rotor steps from position 1 → 3 → 5 → 7 . Full step mode results in the same angular movement as 1 phase on drive but the mechanical position is offset by one half of a full step. The torque output of the unipolar wound motor is lower than the bipolar motor (for motors with the same winding parameters) since the unipolar motor uses only 50% of the available winding while the bipolar motor uses the entire winding.
Half Step Drive combines both wave and full step (1&2 phases on) drive modes. Every second step only
one phase is energized and during the other steps one phase on each stator.
The stator is energized according to the sequence AB → B → AB → A → AB → B → AB → A and the
rotor steps from position 1 → 2 → 3 → 4 → 5 → 6 → 7 → 8. This results in angular movements that are half of those in 1- or 2-phases-on drive modes. Half stepping can reduce a phenomena referred to as resonance
which can be experienced in 1- or 2- phases-on drive modes.
 
 
 
 
SYNCHRONOUS SPEED
The speed with which the stator magnetic field rotates, which will determine the speed of
the rotor, is called the Synchronous Speed (SS). The SS is a function of the frequency
of the power source and the number of poles (pole pairs) in the motor. The relationship
to calculate the SS of an induction motor is:
1 SS = (120 X f) / P
Where:
SS = Synchronous Speed (RPM)
f = frequency (cycles / second) = 60
P = number of poles (pole pairs)