Encoder: Absolute position measurement with scale tape linear design
Heidenhain LIC 4000 encoder provides high traverse speed and absolute position measurement at a resolution of 1 nanometer.
Heidenhain introduces its new LIC 4000 encoder, which applies absolute position measurement technology to a multi-substrate scale tape linear encoder design. According to the company, its specialized scanning technologies are “insensitive to contamination and therefore guarantee a high degree of equipment availability and a high traverse speed, while at the same time achieving a high resolution of 1 nanometer.”
Absolute encoders, which provide the current position immediately upon switch-on, offer high technological reliability and safety because they can operate without the reference runs that would otherwise be necessary. Absolute encoders also are especially well suited for use on direct drives.
Together with the current position, the commutation offset is known immediately upon switch-on and the motor can immediately be provided with power and held in the control loop. Critical operating states, such as switching on a vertical axis with direct drive or retraction after an emergency stop, are controlled safely.
These encoders feature up to 27 meters of measuring length and use the fast, purely serial EnDat 2.2 interface. Their dimensions match those of Heidenhain’s existing Lida 400 incremental linear encoder. This makes it easy to retrofit existing machine tools, providing absolute measurement technology by just exchanging the encoders. Only the subsequent electronics must be adapted correspondingly.
Heidenhain’s exposed linear encoders also feature customer-friendly mounting tolerances, high traversing velocity, and low height of the scanning head. More information is available via e-mail .
– Edited by Renee Robbins, senior editor
Control Engineering News Desk
Case Study Database
Get more exposure for your case study by uploading it to the Plant Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.
These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.
Click here to visit the Case Study Database and upload your case study.
2012 Salary Survey
In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.
Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.