Motion control module handles complex tasks for up to 30 axes

Omron's Trajexia-PLC motion controller module for CJ platform PLCs uses a Mechatrolink-II Motion bus for independent axis position, speed or torque control.

11/12/2009


Omron Trajexia PLC
Omron Electronics LLC has introduced a compact Trajexia motion controller module that integrates with its CJ-Series PLCs to handle complex motion tasks for up to 30 servos or inverters (AC drives) over a high-speed motion network. The module is designed for OEM applications where panel space reduction is a priority, and cost reductions in design and installation are essential to competitively pricing the finished machine.

Trajexia -PLC module CJ1W-MCH72 can operate up to 14 tasks simultaneously and control up to 30 axes over a Mechatrolink-II Motion bus with independent position, speed or torque control for every axis. Each axis can run complex interpolated moves, e-cams and e-gearboxes. Included in one compact module are digital I/Os, Mechatrolink -II master connection, and serial port for external encoder input. The digital I/Os include 16 inputs, two with registration functionality, and 8 outputs, one with hardware position switch functionality. The encoder input can be used as master axis.

The module is fully compatible with low-cost CPU model CJ1M, standard and high-speed processing CPU models CJ1G and CJ1H, and advanced programmable automation controller (PAC) CPU model CJ2H, enabling OEMs to scale control to match machine and process requirements.

The Trajexia motion controller module and the PLC exchange data through shared mapped memory areas via PLC bus, helping simplify programming and data access, and enabling easy integration with other devices. The selectable cycle time, from 0.5 ms to 4 ms, provides flexibility to respond individually to servos and AC drives. The module also takes advantage of the wide range of CJ1 interface board options to communicate to other Fieldbus systems such as Ethernet, Profibus or DeviceNet.

The CX-Motion Pro (Trajexia Studio) tool in the CX-One software suite makes motion programming easy, even for complex motion tasks, thanks to programming tools based on the Motion Basic instruction set. The software includes dedicated commands for linking axes, e-cams, e-gearboxes, etc. Automatic recognition, control and configuration of drives via the Mechatrolink bus allows easy set-up and maintenance, locally or remotely. When used with Omron PLCs, HMIs and other field devices, Trajexia is also integrated within Omron's CX-One automation software suite, with motion coordination, drive configuration and system debugging performed over the Ethernet connection. The software supports the CJ1W-MCH72 PLC-based Trajexia motion controller, the stand-alone Trajexia controller, and future developments.

- Edited by Renee Robbins, senior editor
Control Engineering News Desk
www.controleng.com
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