Positioning Controller Supports CANopen CiA 402 Motion Control Profile

Maxon Motor EPOS4 70:15, digital positioning controller, 15 A, 10 - 70 VDCMaxon Motor (Switzerland) introduced their Epos4 70/15 digital positioning controller, the most powerful model of the series. It provides a maximum output of 2,1 kW.

The CANopen controller comes in a metal housing. It complies with CiA 301, CiA 305, and CiA 402 providing NMT slave functionality. It delivers up to 2,1 kW of output power and is suitable for controlling both brushed and brushless BLDC motors. Its operating is from -30 °C to +50 °C. The various digital and analog connections can be configured, and the unit is suitable for use with a variety of feedback systems. In addition, the Epos Studio software enables commissioning and integration into a range of master systems.

The CiA 402 motion control profile implementation features Profile Position mode, Profile Velocity mode, Homing mode as well as Cyclic Synchronous modes. Quickstop function as specified in CiA 402 is supported, too. Additionally, the product controls holding of brakes and provides the STO (safe torque-off) function.

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Embedded Networking with CAN and CANopenEmbedded Networking with CAN and CANopen

CAN (Controller Area Network) is a serial communication protocol that was originally developed for the automobile industry. CAN is far superior to conventional serial technologies such as RS232 in regards to functionality and reliability and yet CAN implementations are more cost effective. CANopen, a higher layer protocol based on CAN, provides the means to apply the ingenious CAN features to a variety of industrial-strength applications.

Many users, for example in the field of medical engineering, opted for CANopen because they have to meet particularly stringent safety requirements. Similar requirements had to be considered by manufacturers of other equipment with very high safety or reliability requirements (e.g. robots, lifts and transportation systems). Providing a detailed look at both CAN and CANopen, this book examines those technologies in the context of embedded networks.

There is an overview of general embedded networking and an introduction to the primary functionality provided by CANopen. Everything one needs to know to configure and operate a CANopen network using off-the-shelf components is described, along with details for those designers who want to build their own CANopen nodes. The wide variety of applications for CAN and CANopen is discussed, and instructions in developing embedded networks based on the protocol are included. In addition, references and examples using MicroCANopen, PCANopen Magic, and Vector’s high-end development tools are provided.

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