EtherCAT

The MR-J3-A series servo drives can now be EtherCAT ready, with a new communications module that delivers the speed and performance for demanding motion control and other automation applications. High speed and deterministic, EtherCAT is a leading industrial Ethernet network for multi-axis servo machine control, reducing transmission overheads in applications that combine large numbers of drives, I/O and other devices.


EtherCAT is an open, fully implemented industrial Ethernet technology developed to reduce response times in critical applications, making it suitable for demanding, multi-axis servo systems. It also ensures tight synchronization of multiple devices, enabling multidimensional motion profiles to be executed accurately.

The MELSERVO MR-J3-A servo drive offers precise, fast positioning, vibration-free motion and smooth operation, even at low speeds. Real-time auto tuning ensures maximum precision, very short positioning times and simple installation. The auto-tuning function includes a built-in automatic filter which eliminates vibrations so optimum control is achieved more quickly, even with a wide range of inertia between the motor and load. In addition, an auto-gain search function makes it easy to adjust the servo for maximum machine performance. In the majority of applications, the MELSERVO MR-J3-A servo does not require any manual adjustment.

In applications where ultra-short positioning times are required, the MELSERVO MR-J3-A servo drive provides an average frequency response of 2100Hz, while high-resolution, 18-bit (262,144ppr) encoders ensure accurate positioning. The new EtherCAT module ensures this class-leading performance can be achieved across multi-drive installations by providing communications with 100 servo axes in just milliseconds.