Flat Screen Printer

According to the survey, the starting frequency of the Flat Screen Printing Machine can’t be too high. Since the speed of the equipment is zero at the start of the machine. In the starting process, in addition to overcoming the load resistance torque, the electromagnetic torque overcomes the inertial masking of the rotating part. When the burden on the equipment is heavier than continuous operation, what effect will the startup frequency be too high? Let's take a look at it below.

If the pulse frequency is too high at start-up, the speed of the rotor will not keep up with the speed at which the stator magnetic field rotates, so that the position where the first step is completed is far behind the equilibrium position, and the rotor speed is not increased much in the subsequent steps, while the stator magnetic field is still It rotates forward at a speed proportional to the pulse frequency, so the distance between the rotor and the equilibrium position becomes larger and larger, and finally the step of the rotor falls outside the dynamic stability zone and the phenomenon of out-of-step or oscillation occurs, so that the motor cannot be started.

The starting frequency of various Flat Screen Printer is different. The engineers who focus on micro-stepping motor and stepping motor driver industrial control product program experts believe that the starting frequency should be determined according to the motor description data. Many high starting frequency motors are used. The dual voltage operation means that the starting moment changes from high voltage to low voltage, and the smaller the step size, the more suitable for high frequency starting, the larger the power, the more suitable for high-frequency operation.

From what have discussed above, the starting frequency should not be too high. When the flat screen printing machine starts, the frequency will be gradually increased.

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