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Siemens extends application spectrum for Sinamics V90 servo drive system

  • New 200-volt converters and motors with lower shaft heights and lower moments of inertia added to basic servo drive system
  • Different converter sizes and motor shaft heights cover a large field of application
  • Connection to a higher-level controller now possible via Modbus/USS communication

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.

Additional information on the topic servo drive systems at 

Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 165 years. The company is active in more than 200 countries, focusing on the areas of electrification, automation and digitalization. One of the world's largest producers of energy-efficient, resource-saving technologies, Siemens is No. 1 in offshore wind turbine construction, a leading supplier of gas and steam turbines for power generation, a major provider of power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry. The company is also a leading provider of medical imaging equipment – such as computed tomography and magnetic resonance imaging systems – and a leader in laboratory diagnostics as well as clinical IT. In fiscal 2014, which ended on September 30, 2014, Siemens generated revenue from continuing operations of €71.9 billion and net income of €5.5 billion. At the end of September 2014, the company had around 343,000 employees worldwide on a continuing basis.

Further information is available on the Internet at

Reference Number: PR2015110008DFEN

Mr. Peter Jefimiec
Digital Factory Division
Siemens AG

Gleiwitzer Str. 555

90475 Nuremberg


Tel: +49 (911) 895-7975


Peter Jefimiec | Siemens Digital Factory

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