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The Method Of Inductive Pulse Interference In The Machine Tool Customer Service Network Of CNC Machine Tools


Inductive interference typically refers to the phenomenon where electromagnetic signals induce voltage or current in nearby conductors, leading to potential signal distortions or disruptions.

In the context of CNC machine tools, customer service networks usually involve communication protocols, data transfer, and connectivity between the CNC machine and other devices like computers or control systems.

If we interpret “Inductive Pulse Interference” in this context, it could be referring to a technique or method to mitigate or deal with electromagnetic interference in CNC machine tool customer service networks. The interference could result from high-frequency signals, rapid switching of electrical currents, or electromagnetic radiation from nearby devices.

Inductive Pulse Interference Techniques


To counter such interference, various techniques can be applied:

  • Electromagnetic shielding: Enclosing sensitive components or cables in metal shields to block external electromagnetic fields.
  • Grounding and Earthing: Properly grounding the machine and equipment to create a path for the interference to flow safely away.
  • Twisted Pair Cables: Using twisted pair cables for signal transmission to reduce the impact of electromagnetic interference.
  • Ferrite Beads: Placing ferrite beads on cables to absorb and attenuate high-frequency noise.
  • Isolation Transformers: Implementing isolation transformers to break the electrical connection between devices, preventing the flow of interference.
  • Proper Cable Routing: Ensuring that cables are routed away from sources of electromagnetic interference.
  • Filtering: Using filters to eliminate specific frequencies that are causing interference.

Keep in mind that without further context or updated information, it is challenging to provide a precise explanation of the term “Inductive Pulse Interference” in the specific context of CNC machine tool customer service networks. If this term is part of a specific product, system, or research, I recommend referring to the manufacturer’s documentation or relevant research papers for a more detailed understanding.

The Method Of Inductive Pulse Interference


There are many ways to overcome grid pulse interference, the most fundamental way is to eliminate the source of interference. This requires the transformation of various electrical equipment.

In the case of AC motors, freewheeling is difficult. In Siemens’ servo system, the alternating current is rectified into stagnant power and then inverted. In this way, the motor is isolated from the grid, and the freewheeling diode can also be connected to the DC current.

All kinds of machinery and equipment produced in West Germany now use industrial drive control for electric motors. This not only improves the efficiency of the motor and enhances the protection of the motor, but also avoids it and avoids their interference with the grid.   In our country, in order to eliminate the interference in the power grid, it is still difficult to achieve in a short period of time. Usually, the transformer isolation method is used to reduce the influence of the interference pulse on the numerical control system. The principle of this method is to use the characteristics of the inductive reactance of the transformer and the frequency of the signal. Because the frequency of the interference pulse is much higher than 50hz AC. So the transformer transmits much less power to it.  

Capacitors can also be used to filter interference pulses. Large-capacity filter capacitors are generally installed in DC circuits. These capacitors are usually electrolytic capacitors. Compensate with a non-inductive capacitor. For example, Tangshan Cement Machinery Factory adopts this measure.   In addition to grid and electromagnetic interference, there are other factors that can cause downtime failures.

For example, the electrical three defenses mentioned in electrical engineering, that is, the influence of humidity, salt spray, and mold should not be ignored. This situation has been encountered in Zhenjiang Hydraulic Parts Factory. The factory is located in the south of the Yangtze River, and the climate is humid. Although a humidifier is used, the circuit board is still corroded, causing downtime.


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