Servo motor in the process of using and debugging servo motor, from time to time to present a variety of unexpected disturbance, especially for the use of servo motor, sending pulse from the following several aspects analysis under jamming types and occurrence, this will be targeted to the purpose of anti-interference, expect to study together for discussion. 1, the interference from the power practice has proved that caused by the interference of power supply to introduce many servo control system fault condition, usually by adding stabilizer, isolation transformer equipment to solve. 3, interference from grounding system disorder known as the progress is one of the effective means of electronic equipment anti-interference, correct earthing can bay equipment is announced to outside interference; But the wrong ground can introduce serious disturbance signal, instead make the system to normal operation. Generally speaking, the ground control system contains system, shielding, interact and protected area, etc. , if the grounding system is disorder, interference with bar serving system is mainly the pick up address potential distribution, potential difference between different connect address, causes the loop current, affect the system normal operation. Such as cable shielding grounding layers A and B are both ends, the electric potential difference existed, has A current flows through the shield. When an exception occurs such as lightning strikes, ground current will be larger. Besides, shield, ground wire, and the earth may constitute a closed loop, under the effect of changing magnetic field, will present the induced current in the shield, jamming signal circuits. If the system and other ground handling disorder, circulation may be occurred to occur on the ground potential distribution, influence the normal operation of the servo circuit. The key of solve such interference in to identify grounding method, for the system to provide a good grounding function. Interference from inside the system is mainly composed of system each other between the internal components and circuit electromagnetic radiation, such as logic circuits, imitate each other radiation and logically the influence each other and don't match each other between the components used, etc. More cluttered, the scene of the actual working condition can be a specific analysis, but eventually there will be a satisfactory solution, is just a process experience different forget it!
