In what situations does the step motor lose?
When debugging of PLC is very smooth, then there is one suggestion 1. According to the actual situation adjustment by compensation parameter values, (because of the synchronous belt elastic deformation is bigger, so need to add a certain amount of compensation when changing direction). 2. Due to the characteristic of the stepper motor velocity cannot be too high, especially with large load inertia, suggest velocity under 1 r/s, this impact is small, the same acceleration is too great shock to the system is big, easy to overshoot, lead to no motor positioning between forward and reverse due and certain pause time, if not will overshoot caused by reverse acceleration is too big. Add delay to the logic of the pulse. That's basically all that. It depends on the condition of the scene.
Stepper motor lose step and positioning, usually caused by the following reasons: 1, change direction when pulse, were characterized by any one direction, but a change of direction is the cumulative deviation, the more and more wide; 2, the initial velocity is too high, the acceleration is too big, cause sometimes to lose step; Too much or too little to be compensated for in the synchronous belt. Not enough motor power; 5, the controller is disturbed to cause the wrong action. The drive is caused by interference; Software bugs. Want to be specific analysis?
I can think of two situations where an asynchronous motor can be lost In the case of hoisting, which is the driving, the asynchronous motor is in the process of lowering the weight. , In the process of slowing down, the asynchronous motor is controlled by the converter.
The meaning of lost step The general motors are three phase six and five phase ten. If you notice, the three-phase six controller has three LED, five in ten and five leds. Three phases: three groups of motors, three lines. Six beats: three LED, and it loops twice before returning to its original state. Each one of the three LED lights flickers in one, and the step goes into the 0.1 wire, alternating between two and a half times, which is 0.6. Generally out of step motor are missing one or two phase, that is to say, there is a line is broken (for motor and controller bad check).
