Anti-interference is an important part of hydraulic press operation.four-column hydraulic pressIn normal use, the use of electrical appliances is the fundamental condition, so its anti-interference technology is particularly important, and its specific measures are the following:
1. Isolation through physical methods. Increase the distance between the disturbed circuit (or device) and the source of interference, because the interference intensity is inversely proportional to the square of the distance, as far as possible to increase the distance between the source of interference and the disturbed circuit, will greatly reduce the spread of interference, reduce the system failure rate, especially in the case of poor power supply, the use of regulated four-column hydraulic machine for power fluctuations and instantaneous power outages is effective. In order to suppress the power supply noise and the interference between the power supply and the ground cable, an isolation transformer can be connected between the power supply and the numerical control device.
2. Pass the filter. The filter can suppress the input interference and various interferences induced on the signal transmission line. Commonly used are low-pass filter and DC filter, which are generally installed between the power supply and the numerical control device.
3. By shielding method. In order to protect equipment and components from external electromagnetic fields, isolation and shielding measures are usually used. Electrostatic shielding. Is to eliminate the interference between the circuit due to the capacitance and. Low frequency magnetic field shielding. For constant magnetic fields and low frequency magnetic fields, shielding can be achieved with ferromagnetic materials of high magnetic permeability. It confines the magnetic field lines to a shielded conductor with a very small reluctance. In addition, the use of twisted pairs can also eliminate such interference. Electromagnetic shielding. To bear or reject electromagnetism by means of reflection or absorption.
4. Through the method of grounding. If the four-column hydraulic press connects its shell with the earth, it is grounded for protection; if the system ground wire is connected with the earth, it is grounded for the system. Through the protective grounding, or system grounding and other forms, can also achieve the purpose of anti-interference. Four-column hydraulic press manufacturer ShandongZhongyou Heavy IndustryProfessional production and research and development for decades, has a strong technical research and development and production team, the price is reasonable, welcome new and old users to buy!