Basic servo drive system extended.

Siemens has extended its basic servo drive system, consisting of the Sinamics V90 converter and the Simotics S-1FL6 servo motor, to serve a much wider field of application.

The basic servo drive system is now available with 200-volt converters and motors with lower shaft heights and lower moments of inertia ("Low Inertia"/LI) – in addition to the familiar 400-volt versions with a higher moment of inertia ("High Inertia"/HI) of the servo motors. The 200-volt converters are up to 25 percent smaller than the 400-volt versions and therefore save additional space in the control cabinet. With a total of eight converter sizes and seven motor shaft heights with a power range from 0.05 to 7.0 kilowatts, the system is suitable for service in single- and three-phase networks. The different motor shaft heights and flange dimensions address the demands of the Asian market. Thanks to the lower moments of inertia of the motors, a wide range of motion control tasks can be realized in a cost-efficient manner. Here the focus is on dynamic motion and processing – for example positioning, transporting and winding in a wide range of applications.

Numerous integrated functions such as pulse train input positioning (PTI), USS/Modbus connection, internal positioning (IPos) as well as speed and torque control enable users to reduce their machine costs. A braking resistor has been integrated as standard to improve dynamic performance. Furthermore, the servo converter also features a rapid pulse train input of up to 1 megahertz (MHz) and supports absolute encoders with a 20-bit resolution. These functions give the system a high level of fast positioning accuracy and a low level of speed ripple. The improved servo performance is made possible by a number of features including the three-fold overload capacity of the Simotics S-1FL6 servo motor and the optimally coordinated combination of motor and converter as Integrated Drive Systems (IDS). Using IDS-based drive technology, Siemens boosts productivity, energy-efficiency and reliability in all automation environments and throughout the entire lifecycle.

Sinamics V90 is also characterized by its outstanding ease of use. For example, the Sinamics V-Assistant software tool, which is available as a free download, supports commissioning, engineering and diagnosis of the converter. Intuitive menu navigation gives a clear overview of the commissioning procedure. Thanks to coated electronic modules in the Sinamics V90 and a protection rating of IP65 for the Simotics S-1FL6, the drive system is extremely rugged – even in difficult ambient conditions. The integrated Safe Torque Off (STO) safety function prevents the motor from rotating unexpectedly, thereby improving safety for both machine and operator.