EC: AM8500 Servo Motors
Motion Control - Motors: The Beckhoff AM8500 servo motor series with One Cable Technology features an increased rotor moment of inertia and is ideal for applications with larger external mass inertias, such as CNC applications, for example. This is a Control Engineering 2014 Engineers’ Choice honorable mention.
The new AM8500 series extends the Beckhoff servo motor range with increased rotor moment of inertia. This servo motor series is ideal for applications with larger external mass inertias, in particular CNC applications in machine tools and woodworking machines. The AM8500 series covers a wide performance range with four sizes and three lengths with standstill torques from 1.38 to 29 nm. A particular highlight, as with all servomotors from Beckhoff's successful AM8000 series, is One Cable Technology (OCT), with which motor power and feedback lines are combined into one standard motor cable.
Beckhoff servo motors already feature outstanding dynamic characteristics and the special internal electromagnetic design, such as for outstanding overload behavior, but the new AM8500 series now provides a further benefit for many machine types: a larger rotor moment of inertia. Other areas of application for the AM8500 servomotors also include printing machines as well as in film winders and feeding drive units. Due to the modified rotor geometry the moment of inertia is increased, depending on the length, by 100% to 300% compared to previous AM8000 series servo motors.
Due to the high rotor inertia, the control of the AM8500 is simplified in areas where a high external inertia must be moved, because the servo motors tend to vibrate less and can be adjusted much more easily on the servo controller. In some cases it is even possible to do without a gearbox if one was necessary only for the ratio of external to intrinsic inertia.