Encoders offer condition-based online diagnostics
Product Exclusive: Leine & Linde, subsidiary of Heidenhain, offers new Advanced Diagnostic System (ADS) Online, an encoder diagnostic tool especially useful in large complex machinery.
After 10 years of dependable service, an updated version of the popular ADS (Advanced Diagnostic System) has been launched by Leine & Linde, subsidiary of Heidenhain. The new ADS Online is Leine & Linde’s proprietary advanced encoder diagnostic tool tailored to supporting condition-based maintenance. The system analyzes rotary encoder condition and warns of impending faults before they occur, especially useful in large complex machinery used in the exploration of oil and natural gas as well as wind turbines and paper-converting machines. This allows for service to be performed only when necessary and in ample time to avoid unforeseen stops in production.
The significance of a system like this is especially noteworthy in large complex machinery where the encoder constitutes a central component for speed feedback with the entire system dependent upon it. Temperature, operating speed, and vibration are examples of factors that affect service life and are unique for each application. Since encoders are subject to wear (service life can vary from a couple of years to a couple of decades), an ADS Online system allows users to better predict and schedule maintenance at convenient times instead of waiting for inopportune breakdowns.
Currently available on Leine & Linde’s models 801 and 803 rotary encoder products, ADS Online operates by a connection from the encoder’s diagnostic system direct to a PC or to an Ethernet network, which can access important functioning or trends of the encoder anywhere worldwide. With the assistance of PC software, users can obtain detailed analyses. There are plans to offer ADS Online on other Leine & Linde encoder models in the near future.
Encoder applications for those with ADS Online include the ability to set custom warnings to ensure vibration doesn’t exceed specific damaging levels, program levels for frequency and shaft speeds to indicate overspeed or standstills to ensure that the machine does not overheat and to prevent voltage drops in the power supply. It can also send an automatic warning when the encoder reaches a certain operating time.
Leine & Linde, subsidiary of Heidenhain, is based in Sweden with exclusive North American distribution through Heidenhain Corp. in Schaumburg, Ill.
- Edited by Mark T. Hoske, content manager, CFE Media, Control Engineering and Plant Engineering, mhoske(at)cfemedia.com.
Leine & Linde offers heavy-duty incremental and absolute encoders, designed to cope with the harshest of environments, such as those with high vibration, dirt, and cold temperatures. These heavy, severe-duty encoders are suited for drive and measurement applications and are often found in industries such as pulp and paper, forest and wood processing, agriculture, aggregate, and mining equipment, the company said.
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