Circular connectors are the standard in both machinery and plant engineering and robotics. Given the decentralised and modular construction of these applications, prefabricated cables offer ideal suitability, allowing fast and error-free installation even in difficult plant conditions, far removed from an ergonomic, well organised workplace. The robust M12 circular connectors have proven their value in this field for decades. 

 

For compact and weight-sensitive applications, particularly in robotics, M8 and M5 circular connectors are an attractive alternative. These are just as robust and effective as M12 solutions, only much smaller and lighter. The recent introduction of corresponding standards is a further argument in favour of opting for the smaller sizes. Specifically, standard IEC 61076-2-101, which previously covered all M5, M8 and M12 plug-in data connectors, has been divided into separate individual standards due to increasingly extensive information:

Three paths towards the goal

To account for this broad spectrum of cables, Weidmuller offers a product and service package with multiple customisation options that meets all requirements. First of all, there is the traditional ‘standardised product’ variant, though ‘standardised’ fails to adequately describe the wide assortment of products available. Weidmuller offers prefabricated cables made from PUR, PVC and LSZH in lengths of 1, 3, 5 and 10 m. Transparent labelling sleeves and a wide range of colours ensure a clearer overview during installation. 

 

The cables are available with M8, M12, M16, 7/8" and RJ45 plug-in connectors in various sizes and codings, allowing installations for power, signals or data to be clearly separated. 360° shielding, vibration resistance and protection ranging from IP65 to IP69 guarantee fault-free operation. The prefabricated cables can be ordered directly via the online catalogue. Orders can be placed from a batch size of one. 

 

Alternatively, users can also arrange to have customised variants produced, whether identical on both sides, with different plugs or with open cable ends. Weidmuller offers specific solutions with demand-oriented cable lengths, plugs, markings or colours from a batch size of one. They can be constructed with ease using the online configurator on the Weidmuller homepage. Automatically produced technical documentation is also included in the service. 

 

Finally, customised cables can also be compiled in direct contact with Weidmuller specialists – the third ordering option. In this way, users can coordinate specific wiring arrangements, special packages and individual markings. Bundling different cables under a single order number is also possible for easy reordering. For a seamless logistics process and simple parts replacement, a scannable EAN can be assigned to the cable ex works, ensuring quick identification.

 

Once delivered, all that’s left is for the cable to be installed. To this end, technicians can call on Screwty, an innovative tool for screwing and unscrewing circular connectors in confined spaces and difficult-to-reach areas. The highlight is its individually adjustable torque, allowing for optimal sealing. In addition, it means that machinery manufacturers can implement the quality management system requirements of DIN EN ISO 9001.