Elmo (Israel) has introduced the Gold Duet servo drive family. The UL certified products are suitable for input voltages up to 800 VDC or up to 530 VAC. The CANopen interface complies with CiA 402 (IEC 61800-7-201/301).
THE GOLD DUET SERVO DRIVE integrates motor and controller. According to the Israeli manufacturer, the drives are also suitable for laboratory applications. The products are available with different flange sizes (40 mm, 60 mm, 80 mm, or 130 mm). The power outputs range from 30 W to 5 kW. The CiA 402 compliant drive features some already built-in motion functions such as dynamic braking, cascaded vector control, and master-slave follower. The devices are also protected against thermal stress (I2t) caused by peak currents. The CANopen interface supports optionally the Layer Setting Services (CiA 305), meaning that the host controller can configure the node-ID via the CAN network.
The Ethercat variants of the Gold servo drives feature optionally Safe Torque Off (STO) functionality. For CANopen this function is not available. CiA is just preparing an extension of CiA 402 for functional safety. The Ethercat motion safety will be adopted in CiA 402-4.
The Gold Line products are designed for single and multi-axis applications. They enable ‘on-the-fly’ updates of target positions using blending and transitions, superimposed motion and other capabilities. This trademarked function is called Flying Vision. It also supports Delta robots and kinematics, and 1D, 2D and 3D error correction.
The Flying Vision with superimposed motions (that is, adding another profiler on top of an ongoing motion in real time) improves the machine throughput. This function is used mainly when the exact end position of a motion is unknown and needs to change during the motion, without crossing the initial location. With this functionality, the user can change the target position without changing the current function block.
The superimposed motion enables increased accuracy and motion stability, while reducing process time, with potentially improved speed of 30 percent or more, stated the supplier.
The Elmo Application Studio II (EAS II) introduced at end of 2013 lets the user walk through the drive configuration. The Windows-based software comprises a set of Quick Tuning wizards and provides all necessary functions to optimize the motion control design.
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