Current productsNews from drive technology
Without drive technology - in the truest sense of the word - nothing would turn in most machines and systems. Computer&AUTOMATION presents the latest innovations in this automation discipline in a series of pictures.
Yaskawa is expanding its Sigma-7 servo system. The portfolio now includes amplifiers and motors for 200 V and 400 V in the power class between 50 W and 15 kW. Three additional direct drives with high-resolution encoders (either absolute or incremental) in the torque range from 1.3 Nm to 240 Nm are new. According to the manufacturer, the 24-bit encoder significantly improves the control characteristics compared to the predecessor series 'Sigma-5'. All motors have the option of a central cable feed-through and are therefore particularly suitable for handling applications of all kinds. In some applications, intelligent individual drives are required. The 'Sigma-7Siec' variant is available specifically for the European market. With the IEC development interface, it guarantees clear programming in accordance with the IEC 61131-3 standard. The system can be expanded with external I/Os or operator terminals using additional standardized protocols such as Ethernet/IP and Modbus TCP. The 'Sigma-7C' dual-axis model with integrated controller is also available. As no separate controller is required, the component can be designed to be more compact, thus saving space in the control cabinet or system. In addition, no bus cable is required between the controller and servo amplifier. Alongside the latest expansion, the servo system now offers extended safety functions and meets the requirements of EN IEC 61508 SIL 3 and PL e. The STO function is integrated into all servo drives in the series as standard. For increased requirements, the SS1, SS2 and SLS safety functions are available as optional modules for various Sigma 7 models.