Crane in the course of their work, there will be this kind of interference, such as other equipment vibration interference, interference from the grounding system disorder, only the right to take certain measures, such interference is not a problem, then we grounding system from chaos Interference immunity to everyone grounding system introduce measures adopted. As we all know, the ground is one of the effective means of electronic equipment interference, proper grounding can inhibit the effects of electromagnetic interference, but interference suppression device sends out; but the error of the ground it will introduce significant interference signal to the PLC system can not working properly. PLC control system, including ground systems, the shield, the exchange of land and protect the land, if the grounding system disorder interference PLC system is primarily a place of potential uneven distribution among different ground potential difference exists, causing ground loop current, affecting the system work properly. Such as a cable shield must be grounded, if the cable shield at both ends A, B are grounded, there is potential difference, a current flows through the shield. When abnormal conditions such as lightning, ground current will be greater. In addition, shielding, grounding line and the ground may constitute a closed loop, under the action of magnetic field changes, there will be induced current, the interference signal circuit inside the shield. If the system with other ground handling chaos, produced by ground loops may ground line ranging potential distribution, affecting the normal operation within the PLC logic and analog circuits. New Oriental Henan Crane Group's products have passed Elvey quality system certification, with perfect quality assurance strict management system, strong production capacity and advanced detection instruments, the main products are provincial protection products, the company was awarded numerous Department, provincial, municipal comprehensive quality management standards enterprises, with the contract and trustworthy enterprises, the quality of trust units, technologically advanced units and so on, Xinxiang City taxpayers civilized units. The company's products over the years continuous development of new technologies, new products, improve the technological content of products to meet market demand for a higher level of lifting equipment, to single and double girder crane for modified design, for similar international product standards, to capture the market high ground. Phone: 15515825537 Website: http: //www.hnqzjjt.com Tel: 0371-53308519 / 53308529