Micromech Enhances Control Of Sigma-5 Servo Drives

Micromech has added three additional command-option units to the Sigma-5 servo drives, making them suitable for packaging and assembly machines, material handling, machine tools and robotics. The introduction of an 'indexer command module' turns the Sigma-5 into a powerful point-to-point-positioning controller. Two new 'communication command options' allow the Sigma-5 servo drives to be implemented into Canopen and Ethercat communication networks. The command modules can be used for both linear and rotary servo motors from single-phase AC230V 50W to 1.5kW and three-phase AC 400V 500W to 15kW.

The SGDV-OCA03A indexer command option turns the Sigma-5 servo amplifier into a powerful and user-friendly single-axis positioning unit ideal for operating a ballscrew or belt-driven positioner, as well as rotary positioning tables. Programming the indexer requires no knowledge of programming languages and simple and fast configuration is provided via the 'Sigmawin+' set-up software. The indexer can be controlled using either a serial network of individual digital I/O channels, simplifying integration with a PLC.

Up to 256 programmed index moves can be defined within the module; control methods such as position and speed tables can also be defined. In addition, up to 16 indexer modules can be connected via the serial network. The SGDV-OCA01A Ethercat command option provides a real-time Ethernet interface for Ethercat communication networks and uses the Canopen (CoE, CAN over Ethercat) communications protocol. The Ethercat CoE interface allows the implementation of a synchronised distributed drive system with high bandwidth and good reliability.

The Ethercat network module offers a wide range of functions based on IEC61158 Type12, IEC 61800-7 CIA402 drive profile, and meets all relevant international standards. The SGDV-OCB01A plug in Canopen network module allows simple integration of the Sigma-5 servo drives into this popular and cost-effective Bus network. The module is compatible with the Canopen profiles DS-301 and DSP-402 V2.0. It supports the following modes: Profile Position Mode, Homing Mode, Profile Velocity Mode, Profile Torque Mode and interpolated Position Mode.

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