SGMDH Sigma II Japan YASKAWA 15.3N-m SERVO MOTOR 3200W SGMDH-32A2A-YR14

 

 

 

The presence of this high permeability material causes the magnetic flux to be confined for the most part to the paths defined by the stator structure in the same fashion that currents are confined to the conductors of an electronic circuit. This serves to concentrate the flux at the stator poles. The
Figure 4. Principle of a disc magnet motor developed by Portescap.= N N N N S S S 3
Figure 5. Magnetic flux path through a two-pole stepper motor with a lag between the rotor and stator.
Figure 6. Unipolar and bipolar wound stepper motors. torque output produced by the motor is proportional to the intensity of the magnetic flux generated when the winding is energized.
The basic relationship which defines the intensity of the magnetic flux is defined by:
H = (N × i) ÷ l where:
N = The number of winding turns
i = current
H = Magnetic field intensity
l = Magnetic flux path length
This relationship shows that the magnetic flux intensity and consequently the torque is proportional to
the number of winding turns and the current and inversely proportional to the length of the magnetic flux path.
From this basic relationship one can see that the same frame size stepper motor could have very different torque output capabilities simply by changing the winding parameters. More detailed information on how the winding parameters affect the output capability of the motor can be found in the application note entitled “Drive Circuit Basics”.

 

 

 

Unlike dc motors, with servo motors you can position the motor shaft at a specific position (angle) using control signal. The motor shaft will hold at this position as long as the control signal not changed. This is very useful for controlling robot arms, unmanned airplanes control surface or any object that you want it to move at certain angle and stay at its new position.
Servo motors may be classified according to size or torque that it can withstand into mini, standard and giant servos. Usually mini and standard size servo motors can be powered by Arduino directly with no need to external power supply or driver.
Usually servo motors comes with arms (metals or plastic) that is connected to the object required to move (see figure below to the right).

 

 

 

 

The third pin accept the control signal which is a pulse-width modulation (PWM) signal. It can be easily produced by all micro- controllers and Arduino board.
This accepts the signal from your controller that tells it what angle to turn to. The control signal is fairly simple compared to that of a stepper motor. It is just a pulse of varying lengths. The length of the pulse corresponds to the angle the motor turns to.

 

 

 

 

Control Block Diagram of Servo Motors
A pulse signal that is externally applied (when it is the pulse input type) and the rotation detected by the servo motor encoder are counted, and the difference (deviation) is output to the speed control unit. This counter is referred to as the deviation counter.
During motor rotation, an accumulated pulse (positioning deviation) is generated in the deviation counter and is controlled so as to go to zero.
The function for holding the current position (position holding by servo control) is achieved with a position loop (deviation counter).