FNORE Catalogue En2025

There is no need to con gure additional host, and various functions such as working surface follow-up automation can be realized independently. There are few types of networking products in this system, and various network accessories such as plums, adapters, lifters, etc. are cancelled. The entire bus network only needs to be connected to each other by controllers. All interfaces of the entire system uniformly adopt a unique electrical twist connector, which makes the products of this system have very good versatility when used underground, with few types of accessories and strong interchangeability. It reduces the fault points of the system and the supporting cost. At the same time, it is convenient for maintenance at any time in the com- plex underground environment. A working surface usually consists of more than 100 controllers connected to a communication bus to form a linear network, and the electric control equipment on it adopts distributed power supply, and each power supply subsystem needs to isolate and transmit communication signals. In addition, because the original bus is bidirectional transmission, and it is mutual master-slave bidirectional transmission, that is, all bracket controllers connected to the bus have the same right to control the bus and obtain the bus control right according to the bit-by-bit competition mode. This requires the bus to be isolated without affecting the original bi-directional bit-by-bit competition transmission function. This system has transparent bi-directional transmission isolation and incubation technology, which perfectly solves this contradiction. On the other hand, all bracket controllers are connected to the bus, and the signal transmission ef ciency is high. However, in this way, each bracket is in the same network position, and its physical location cannot be automatically obtained. However, accord- ing to the requirements of underground coal mining operation, each bracket must be able to identify the speci c location of itself and other brackets. Therefore, we have developed the automatic sequential addressing technology of bus network by combining software and hardware, so that our electro-hydraulic control system can automatically identify the terminal location connected to the bus with- out increasing connecting lines, and give it sequential digital addresses. The bracket controller is easy to operate, the buttons are large and exible, and it is very comfortable to operate underground. It has an IP68 protection level, can dive for a long time, and has good dustproof and waterproof capabilities. At the same time, the operating panel has a special anti-vandalism design. Even when the outer membrane and external buttons are damaged, the overall waterproo ng of the controller will not be damaged, water will not enter, and the normal operation of the product will not be affect- ed. The ameproof and intrinsically safe power supply can accept a wide range of AC inputs. It can work normally under AC127V and AC220V. Each power supply contains two outputs, each with input overvoltage protection, double-cut-off fast overcurrent and overvoltage protection, can start and automatically resume on load. The output of a single power supply is up to DC12V/2A, and each power supply is rated to load 10 bracket control systems. www.fnore.com __ 07