Changzhou Prostepper Co.,Ltd.
Committed to becoming the most reliable motor supplier in China
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Product description
1. Accurate position Control
The angular displacement of the stepping motor can be precise controlled by the number of electrical pulses.Angle accuracy can be controlled within ±0.09°without any feedback devices.
2. Accurate Speed Control
The rotational speed of the stepping motor can be precisely controlled ,By controlling the frequency of the electric pulse.
3. Forward/Reverse Rotation,Pause and Hold
The forward /reverse rotation of the stepping motor can be controlled by the input sequence of the controlled electric pulses.
In the case of the a stepping motor lock(the motor winding is energized,there is no external electric pulse command),the stepping motor can still maintain a certain torque output.
Specifications
Encoder Stepping Motor Standard 1.8°
Mode No:PEM20H240E1KzS
| Holding Torque | 0.036N.m |
| Related Current | 0.8A/Phase |
| Resistance | 6.5Ω/Phase |
| Inductance | 2.2MH/Phase |
| Inertia | 2.9g.cm² |
| Index | √ |
| Output | Differental |
| Encoder Resolution | 1000CPR |
Encoder Stepping Motor Standard 1.8°
Mode No:PEM20H240E2KzS
| Holding Torque | 0.02N.m |
| Related Current | 0.6A/Phase |
| Resistance | 6.5Ω/Phase |
| Inductance | 2.2MH/Phase |
| Inertia | 2.9g.cm² |
| Index | √ |
| Output | Differental |
| Encoder Resolution | 2000CPR |
Stepper motors are diverse in their uses, but some of the most common include:
Working principle of stepper motor
To make the motor shaft turn, first one electromagnet is given power, which makes the gear’s teeth magnetically attracted to the electromagnet’s teeth. The point when the gear’s teeth are thus aligned to the first electromagnet, they are slightly offset from the next electromagnet. So when the next electromagnet is turned ON and the first is turned OFF, the gear rotates slightly to align with the next one and from there the process is repeated. Each of those slight rotations is called a step, with an integer number of steps making a full rotation. In that way, the motor can be turned by a precise. Stepper motor doesn’t rotate continuously, they rotate in steps. There are 4 coils with a 90o angle between each other fixed on the stator. The stepper motor connections are determined by the way the coils are interconnected. In a stepper motor, the coils are not connected. The motor has a 90o rotation step with the coils being energized in a cyclic order, determining the shaft rotation direction. The working of this motor is shown by operating the switch. The coils are activated in series in 1-sec intervals. The shaft rotates 90o each time the next coil is activated. Its low-speed torque will vary directly with current.
Operation of Stepper Motor:
Stepper motors operate differently from DC brush motors, which rotate when voltage is applied to their terminals. Stepper motors, on the other hand, effectively have multiple toothed electromagnets arranged around a central gear-shaped piece of iron. The electromagnets are energized by an external control circuit, for example, a microcontroller.