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World's first at SPS IPC Drives: The first intelligent bus cable for safe automation09.01.2019
The mechanical loads in energy chains eventually change the transmission characteristics of bus cables. As well as linear travels, this also applies to three-dimensional movements, for example in the case of dress packs on robots. The result is disruptions in data transmission or even unforeseen plant failures. The globally unique concept presented by motion plastics specialist igus at this year's SPS IPC Drives detects the impairment of the chainflex bus cable used in advance. The intelligent system consists of an evaluation unit and a response module. These are integrated at the beginning and end of the moving bus cable. The evaluation unit is usually placed in the switch cabinet on the fixed end side, and the response module in the distribution box on the moving end side. Between the two, special data packs are transmitted for measurement purposes and the cable quality is permanently evaluated by means of the increasing number of lost or damaged packs. If a predefined value is exceeded, the customer is alerted via a yellow LED and the switching of a contact. This alert threshold can also be queried via the connected network and the current situation can be displayed in a web browser. Exceeding a second alert threshold is signaled via red LED and indicates a failure of the bus transmission, so that the error can be quickly located by taking a look at the switch cabinet. |