Stober launches high power supply for multi-axis drive systems

New from Stober is the PS6A44 high power supply for drive controllers in multi-axis drive systems. Developed to meet the need for an increasing number of axes and very high power in applications like metal and wood working machine tools, just one PS6A44 power unit can be used to supply multiple drive controllers.

This means that designers and engineers can now supply multiple axes with more power just using one high powered module. It gives them an extremely compact solution for extra dynamic applications, saves space in the control cabinet, reduces the cabling effort and makes installation and commissioning faster.

The nominal current is 95 Amps and the power on the axes is 50 kW. For processes with a high starting torque and dynamic ramps, a 150% overload is available for five seconds or 120% for 30 seconds.

This addition to the PS6 range connects and powers the multi-axis drive system and eliminates the need for parallel connection of multiple supply modules. It integrates seamlessly with the SI6 drive controller from Stober’s new Generation 6. Measuring a slim 45mm wide, the SI6 is a highly dynamic drive controller that works inconspicuously and reliably in the background, even during demanding movements.

STO (Safe Torque Off) and SS1 (Safe Stop 1) functions are integrated, being certified for PL e, cat. 4 in accordance with EN 13849-1. They can be used without function tests that interrupt production.

A single drive controller can control up to two axes. By linking several controllers, the number of axes can be scaled as needed. The individual devices are fast and easy to connect, both together and to the PS6 central supply module, using Quick DC-Link modules. As a single or double-axis controller, the SI6 is available with a nominal output current up to 50 A. This highly dynamic drive series achieves short settling times with fast set value changes and load jumps.

Using the SI6 drive controller in combination with the new PS6 High Power supply, EZ type synchronous servo motors can be actuated. For example, the new One Cable Solution (OCS) reliably connects the motor and controller up to a length of 100 metres. As a result, only a single hybrid cable is needed for the simultaneous transmission of the electricity and encoder data, something that usually requires two cables.

Stober developed this new hybrid cable together with Heidenhain using the new, future-proof EnDat 3 protocol in the encoder interface. It is optimised specifically for highly dynamic cases in drag chains and is suited for applications in which there is very little space. Consequently, the PS6 high power unit, the SI6 controller, and the OCS give the end user a fully integrated, highly dynamic and reliable drive system.