Motion pulse motor
So the rotational speed of a DC motor depends upon the interaction between two magnetic fields, one set up by the stator’s stationary permanent magnets and the other by the armatures rotating electromagnets and by controlling this interaction we can control the speed of rotation. 2-Pole Permanent Magnet MotorĪs the armature rotates electrical current is passed from the motors terminals to the next set of armature windings via carbon brushes located around the commutator producing another magnetic field and each time the armature rotates a new set of armature windings are energised forcing the armature to rotate more and more and so on. The circular magnetic field produced by the armatures windings produces both north and south poles around the armature which are repelled or attracted by the stator’s permanent magnets producing a rotational movement around the motors central axis as shown. The current flowing within these rotor coils producing the necessary electromagnetic field. The motors armature consists of individual electrical coils connected together in a circular configuration around its metallic body producing a North-Pole then a South-Pole then a North-Pole etc, type of field system configuration. Generally in small light duty DC motors the stator consists of a pair of fixed permanent magnets producing a uniform and stationary magnetic flux inside the motor giving these types of motors their name of “permanent-magnet direct-current” (PMDC) motors. machines the rotor is commonly termed the “Armature”.
Small DC motors ideal for use in applications were speed control is required such as in small toys, models, robots and other such electronics circuits.Ī DC motor consist basically of two parts, the stationary body of the motor called the “Stator” and the inner part which rotates producing the movement called the “Rotor”. Next to stepper motors, the Permanent Magnet DC Motor (PMDC) is the most commonly used type of small direct current motor available producing a continuous rotational speed that can be easily controlled. If you have questions or would like to see a specific Pat's Corner let us know at by phone at 809, or you can find me on Google+ to discuss.But before we start looking at the in’s and out’s of pulse width modulation we need to understand a little more about how a DC motor works. Let’s call this ratio X and the formula is as simple as X = C/P or X = P/C See below. You will either need inches-per-pulse or pulses-per-inch. The final calculation will be governed by your application. To determine the circumference of the tube we need to know the diameter of the tube and then multiply that by Pi.
MOTION PULSE MOTOR CODE
The characteristics data chart shows a 15 speed code has a 45 to 1 Reduction Ratio. Let’s say a “15 speed code” was selected for the application. You can find this ratio in the characteristics data sheets of any of our Drives Products. This is done by multiplying the “Pulses/Motor Rotation” by the Gearbox Ratio selected for the job. Next, we need to figure out the Pulses/Tube Rotation (P).
Therefore, to get “Pulses/Motor Rotation” the formula is the amount of Motor Poles multiplied by the amount of hall effect sensors (10x3).ģ0 Pulses/Motor Rotation = Constant for All PULSEROLLER Drives So, how do I accomplish this task? How many pulses will I need to input to our controller to move my product 30 inches? Here is how you will figure it out.Īll Senergy products (Gear Drives or Rollers) have a constant 30 “Pulse/Motor Rotation.” This is because our internal motor is a 10 pole motor and has 3 hall effect sensors detecting motion of the rotor. With PULSEROLLER Drives you do have repeatable linear motion at a pretty fine (<1mm) resolution.
There are times when you will want to use ConveyLinx and Senergy for more refined motion. Calculating Inches/Pulse For Senergy Drives