This is a good question, apparently posed by one who has not participated in such a project previously. The startup and setup of a servo system in a first-off machine, such as assorted industrial machines that are essentially custome built for a specific operation, depends on quite a few variables. The very first element of startup is the verification that all of the connections are correct, and that all of the sensors signals are of the correct polarity for the application. this often is done at the same time as the initial power-up and run, where a servo package is manually controlled to drive to the extreme ands of motion so that these limits may be set. After limts are set so that the servo will only drive where it should, an attempt to run the desired motion profile at a reduced speed is made, with attention being concentrated on accuracy and performance, looking for any instability. During this time the velocity is normally increased and proportional and derivative gain are increased to approach the intended performance, normally measured in terms of cycle time and accuracy. After the goals of required cycle time at specified accuracy are reached, there is usually some experimentation done to see how close to instability the system is, as well as checking to verify actual accuracy and repeatability. Integral gain may be needed in order to assure continued accuracy of position or velocity.
Presuming that the rest of the system, including all of the mechanical portions, do not need modification, the whole procedure may run from a half hour up to several hours, with the length of time depending primarily on the effort needed to verify that the system is accurate and stable.
One of the challenges new with digital servo controls is the different ways that the variables such as dirivative and integral gain terms can be done. Different algorithms can provide functionality that is very different from what traditional analog implementations of classical servo theory would describe. This is an area where manufacturers documentation makes a great deal of difference.
Yep, Beth, installation is an issue. It usually involves service companies and vendors and lots of time. In recent years, automation vendors have worked to make installation easier, less time consuming and ultimately less expensive. Thus the big emphasis on these new devices on how simple they are to deploy.
The 3D printing revolution seems to have a knack for quickly moving technology ahead by way of collaborative effort and even a little friendly competition -- all of course in the name of scientific advancement.
Advantech has launched a new series of motion-control I/O modules to meet the increased demands that come with more distributed industrial systems that require control of a growing number of axes and devices.
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is