Drive controllers from Sieb & Meyer
New scope for high-speed applications
The members of the SD4x drive controller family are designed for high-speed motors, and Sieb & Meyer will be presenting their advanced versions at SPS 2025.
The focus of the trade fair presentation will be on the SD4S, SD4M and SD4B series, which have been further expanded since last year's launch and now cover an even wider range of applications.
The SD4x devices reduce motor losses and enable particularly high speeds. With frequencies up to 6000 Hz, spindles and motors can be used in applications ranging from internal cylindrical grinding and dicing to turbo compressors.
One focus of the trade fair will be on the SD4S series, which is now available in a comprehensive power range from 300 VA to 66 kVA. The drive controllers achieve output frequencies of up to 4000 Hz for synchronous motors and 6000 Hz for asynchronous motors. Interfaces such as EtherCAT, Profinet IO, Powerlink, Modbus TCP and CANopen ensure seamless integration into different architectures.
The SD4M devices with three-level technology achieve outputs between 70 and 554 kVA. They reduce motor heating and eliminate the need for sine filters or chokes. Variants for AC and DC feed make the devices interesting for generator applications as well – for example, in micro gas turbines or flywheels.
The compact SD4B drive controller, available for power ranges up to 0.96 kVA, is suitable for use as a highly dynamic servo amplifier and also optimises the operation of high-speed low-voltage synchronous and asynchronous motors. In addition, the SD4B can be used to operate multiple high-speed motors in angular synchronisation – an important factor in optical applications, for example. Even with high inertia ratios of up to 1:100 between the motor and the tool, the drive controller ensures stable speed control.
In addition to the hardware, Sieb & Meyer is also showcasing its software tools. The ‘drivemaster4’ parameterisation software has been further developed and provides support from commissioning to diagnostics. In addition, the ‘SpindelServiceTool’ (SST) offers manufacturers and repair companies the option of automating test and running-in processes. Functions such as the integrated load indicator or the motor analyser, which can be used to simulate operating points, complement the toolbox for system developers.
SPS 2025: Hall 4, Booth 230
