YASKAWA Si-ES3 EtherCat Option communication card

Buy online your YASKAWA Si-ES3 EtherCat Option communication card our UK e-store Cnc-shopping UK, specialist in CNC machine-tools spare parts.

The YASKAWA SI-ES3 is an EtherCAT communication option module designed to integrate compatible YASKAWA AC drives into real-time EtherCAT industrial networks. Installed in the drive's SI option slot, it enables the inverter to operate as an EtherCAT slave, providing deterministic communication with PLCs, CNC systems, and motion controllers.

The module supports high-speed cyclic process data exchange, allowing the transmission of control words, status words, speed references, torque references, feedback signals, and diagnostic information with predictable cycle times. It also provides acyclic parameter access, enabling remote configuration, commissioning, and maintenance directly through the EtherCAT network.

The SI-ES3 interfaces seamlessly with the drive firmware to expose the required control objects and parameter channels over EtherCAT. Its industrial Ethernet interface, equipped with RJ45 connectors, is optimized for demanding automation environments where synchronized communication and reliable network performance are essential.

The module is compatible with YASKAWA GA700, GA500, A1000, and U1000 drive series. For GA500 drives, installation requires the JOHB-GA50 mounting kit. Typical applications include CNC spindle control, motion control systems, conveyor automation, process equipment, and other industrial installations requiring deterministic fieldbus communication.

Designed for industrial maintenance and retrofit projects, the SI-ES3 provides a practical solution for restoring or upgrading EtherCAT connectivity without modifying the existing motor power wiring. Its plug-in architecture enables rapid replacement of a faulty communication interface, minimizing machine downtime and simplifying maintenance operations.

Frequently asked questions about Si-ES3:

Which YASKAWA drives can use this module
It is intended for YASKAWA inverters that accept SI-series option cards. It is commonly used with major inverter families such as A1000 or GA800, but always verify compatibility against the drive manual and option slot specifications on the nameplate.

What does the EtherCAT option provide at the control level
It enables cyclic setpoint and status exchange plus parameter access over EtherCAT so the controller can command speed or torque and read back alarms and diagnostics. Available control modes and objects depend on the host drive firmware and application.

What cabling should be used
Use shielded industrial Ethernet cable such as Cat5e or higher with proper grounding and routing away from high-noise conductors. Maintain EtherCAT topology and segment lengths as recommended by the controller and network guidelines.

Is firmware required on the option itself
The option works in conjunction with the inverter’s firmware to present EtherCAT communication objects. Ensure the drive firmware revision supports this option and consult the release notes for any version dependencies.

Can it be used in CNC retrofit projects
Yes, it is frequently used to integrate existing YASKAWA inverters into an EtherCAT-based CNC or motion system. It provides a clean path to command the drive from an EtherCAT master while keeping motor power wiring unchanged.