Recently more customers are reflected in the process of inquiry because of stepper motor and driver model with more, more variety, should be how to better understand the stepper motor and drive to the right to choose their requirements of products, the user when the choice should have certain standards, so that to the best performance, the lowest price to choose good you need products. four macro motor selection Suggestions should follow certain principles,For reference only): 1。 First needed to determine the stepper motor load torque. the simplest method is on the load shaft with a lever, with the spring balance pull the lever and pulling force times the length of the lever is not only the load torque. Or according to the load characteristic is theoretically calculated. because of stepping motor is controlled, so the current commonly used stepping motor does not exceed the maximum moment of 45 nm, the greater the torque, the higher the cost, if you choose the motor torque is larger or more than this range, can consider to add with the reduction gear. 2。 To determine the highest running speed of stepper motor. speed indicator in the selection of step motor is crucial, the characteristics of the stepper motor is with the increase of motor speed, torque, the falling speed is related to many parameters, such as: stepper motor drives the driving voltage, phase current, the phase inductance, the size of machine and so on, the general rule is: the higher the driving voltage, torque decline more slowly; The more slowly the motor phase current, the greater the torque. In design, should make the motor speed control in 600 r/min, or within 800 r/min, say that is not standard, of course, you can refer to the < moment -Frequency characteristics >. 3。 According to the load maximum moment and maximum speed the two important indicators, then refer to 'the moment -Frequency characteristics >, you can choose the suitable stepper motor. if you think you choose the machine is too large, can consider to add reduction gear, so that we can save cost, also can make your design more flexible. To choose appropriate reduction ratio, to considering the relationship between torque and speed, choose the best solution. 4。 Finally consider leaving (Such as 50%)Torque allowance allowance and rotational speed. 5。 Can choose first hybrid stepping motor, if due to price factors, you can pick and choose the reactive stepper motor. 6。 Select subdivision driver as far as possible, and make the drive to work in the state of segment. 7。 Select and when not to only look at this one index of the motor torque error, that is not the motor torque is bigger, the better, want to consider with speed indicator. 8。 Subminiature drives and micro drive is to rely on the shell as the radiator, shall be fixed in a larger, thicker plates or additional cooling fan, if there is no cooling conditions, and drive to work in the low speed occasions (Then drive fever is bigger), you can choose 90 type drive instead of with fan. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone:
