Anti-interference measures of four-column hydraulic press

Anti-interference measures of four-column hydraulic press

1. The physical isolation method increases the distance between the disturbed circuit or device of the four-column hydraulic press and the interference source. Since the interference intensity is inversely proportional to the square of the distance, increasing the distance between the interference source and the disturbed circuit as much as possible will greatly reduce the interference. Propagation will also reduce the failure rate of the hydraulic system, especially in the environment of harsh power supply, Shanghai WORLD Press Machine recommends that you use a stable power supply. Connect an isolation transformer with the numerical control device.

2. Shielding method, in order to prevent the four-column hydraulic press and components from being affected by external electromagnetic fields, isolation and shielding measures are usually adopted. Electrostatic shielding is used to eliminate the interference between circuits due to sub-capacitance summation; low-frequency magnetic field shielding For constant magnetic field and low-frequency magnetic field, The use of ferromagnetic materials with high magnetic permeability can achieve shielding, confine the magnetic lines of force in the shielded conductors with small magnetic resistance, and use twisted pairs to eliminate such interference; electromagnetic shielding can withstand or exclude electromagnetic waves by means of reflection or absorption.

3. Grounding method, the four-column hydraulic press connects its casing to the ground for protection grounding. If the four-column hydraulic press system ground wire is connected to the ground, it is the system grounding, which can also achieve anti-interference by means of protective grounding or system grounding.

4. The filter can suppress the input interference and various interferences induced on the signal transmission line. The commonly used low-pass filters and DC filters are generally installed between the power supply of the four-column hydraulic press and the numerical control device.

This article is from the official website of the manufacturer WORLD Press Machine www.pressmachine-world.com, please indicate the source for reprinting!

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