Electricity and Control October 2023

MEASUREMENT + INSTRUMENTATION : PRODUCTS + SERVICES

Speed monitoring solutions for conveyor belts

Conveyor belts are widely used across various indus tries, ensuring the smooth and efficient movement of materials, products and components in the manufactur ing process. The reliable operation of conveyor systems relies on accurate monitoring and control, particularly in maintaining appropriate belt speeds. ifm, a globally recognised leader in industrial automation and sensor technology, has introduced innovative speed monitoring solutions that address the critical needs for precision, safety, and efficiency in conveyor belt operations. Conveyor belts serve as the circulatory system of in dustries, transporting goods efficiently and with speed. The optimal operation of conveyor belts hinges on main taining the appropriate speed. Irregularities in speed can lead to a cascade of issues – from decreased productiv ity and compromised product quality to potential safe ty hazards. ifm’s speed monitoring technology offers a comprehensive suite of solutions tailored to suit different industries and applications. One of the standout solutions is its non-contact inductive sensing technology. This makes use of sensors that can detect metallic targets without any physical contact. In the context of conveyor belts, the technology can be employed to monitor rotational speed. A small metal target is affixed to the rotating component of the conveyor system, and the sensor detects the target’s passing frequency to calculate the speed. The non contact nature of the technology ensures minimal wear and tear, reducing maintenance needs, while maintaining accuracy. Accuracy is a priority in speed monitoring, especial ly in industries where precision is key. ifm’s technology boasts high accuracy levels, in some cases achieving deviations of less than 0.1% from the actual speed. This level of precision translates into enhanced quality con trol, reduced material wastage, and improved overall efficiency. However, accuracy alone is not enough to ensure the seamless operation of conveyor belts. Reliability and The MH-4-CAN, based on the MH-4 from Wika, is a pow erful, reliable and resilient pressure sensor for mobile working machines. Even under demanding conditions, the sensor deliv ers constant, precise measured data and ensures high operational safety. The distinguishing feature of the MH-4-CAN is, as the name suggests, the CANopen or SAE J1939 serial interface. This ena bles it to be used in complex machines and offers the advantage of simple and cost-effective system expansion with the bridging of large distances and, simultaneously, ensuring signal stability and signal integrity. OEM pressure sensor for mobile machines

ifm’s speed monitoring solutions ensure precision, safety, and efficiency in conveyor belt operations. real-time monitoring are equally important. ifm’s speed monitoring solutions offer continuous data transmission, providing operators with a real-time view of the convey or’s speed. This instant access to critical data enables operators to make informed decisions promptly. Further more, the sensors can be integrated with automation systems, allowing for automatic adjustments to maintain the required speed and prevent deviations. Safety is another critical factor in industrial settings. Inadequate speed monitoring can lead to accidents, equipment damage, and the risk of injury to personnel. In ifm’s solutions, these concerns are addressed with safety-oriented features. Emergency stop systems can be integrated with the sensors, ensuring that if an abnormal speed is detected, the system can be halted instantly to prevent any potential accidents. ifm’s speed monitoring technology offers a range of sensor options – from inductive sensors to magnetic encoders, each technology has its particular advantages, making it suitable for different conveyor systems and environments. For more information contact ifm South Africa. Tel: +27 (0)12 450 0400 E-mail: info.za@ifm.com Visit: www.ifm.com/za The MH-4-CAN meets high demands and provides high precision measurements operating at temperatures between -40 and +100°C. With its up to three times overload safety, the sensor withstands hydraulic pressure spikes – and is optionally available with a restrictor. Metallic shielding means the MH-4-CAN works interference-free at field strengths of up to 60 V/m. In addition, vibrations up to 40 g and shocks up to 100 g do not affect the measurement quality. For more information contact WIKA Instruments. Tel +27 (0)11 621 0000 Email: sales.za@wika.com, visit: www.wika.co.za

With its CANopen or SAE J1939 serial interface, the MH 4-CAN is designed for use in complex mobile machines.

20 Electricity + Control OCTOBER 2023