Hybrid Stepper Motor Digital Actuators
Hybrid Stepper Motor Digital actuators
Hybrid stepper motor as a digital actuator, in the motion control system has been widely used. Many users friends in the use of hybrid stepper motor hours, feel
The motor work when there is a big fever, doubts, I do not know whether this phenomenon is normal. In practice, fever is a common phenomenon of hybrid stepper motors, but what happens
Hot level is normal, and how to minimize the hybrid stepper motor fever?
First of all, to understand why the hybrid stepper motor heat
For a variety of hybrid stepper motor, the internal are composed of iron core and winding coil. Winding has resistance, power will produce loss, loss of size and resistance and electricity
The square of the flow is proportional, this is what we often say that the copper loss, if the current is not a standard DC or sine wave, but also produce harmonic loss; give a hysteresis vortex effect
, In the alternating magnetic field will produce loss, its size and data, current, frequency, voltage, called iron loss. Copper loss and iron loss will be the way the performance of heat
Out, thus affecting the efficiency of the motor. Hybrid stepper motor common pursuit of positioning accuracy and torque output, the efficiency is relatively low, the current is generally large, and harmonic components,
The frequency of alternating current also changes with the speed, so hybrid stepper motor prevalence of heat conditions, and the situation is more serious than ordinary AC motor.
In addition, the hybrid stepper motor heating control within a reasonable range
What is the level of motor heating allowed, mainly depends on the insulation level inside the motor. Internal insulation performance at high temperatures (130 degrees or more) will be destroyed. So only
Need to go beyond the 130 degrees, the motor will not be damaged, and then the appearance of the temperature will be below 90 degrees. Therefore, the hybrid stepper motor appearance temperature of 70-80 degrees are normal
The Simple temperature measurement method useful thermometer, but also to a rough distinction: hand to touch more than 1-2 seconds, do not exceed 60 degrees; hand can only touch about
At 70-80 degrees; drop a few drops of water rapid gasification, then more than 90 degrees; of course, can also use the temperature gun to detect.