Scalable Motion Control for Hydraulics with High IQ

Electrohydraulic axes by Rexroth reach new dimensions with acceleration rates of up to 80 G, rapid speeds up to 10 m/s and real-time control cycles. Depending on the measuring system used, the axes are positioning at an accuracy in the order of microns. Both, external closed-loop control electronics for motion control applications for 1 – 4 axes in conjunction with the VT-HACD and the HNC100® families, and IAC axis controllers integrated in the valve communicate with the higher-level control via common field buses. Rexroth’s HNC100® offers Motion Control for hydraulic and electromechanical drives that supports the worldwide only standardized drive interface SERCOS.

 

The Motion Control software is provided with controller structures to compensate for non-linearities of the hydraulics by means of corresponding controller parameters and allows users without in-depth knowledge of hydraulics to commission hydraulic drive technology. In this way, Rexroth decisively simplifies the integration of electrohydraulic drives.

 

Apart from decentralized axis controls that can be finely scaled in terms of power and functionality, Rexroth offers the new high-end Motion Control Rexroth MAC8, a solution for particularly complex automation tasks. This control of modular design controls 2 to 32 axes – or a correspondingly greater number by way of cross-communication – and is ideal for use, for example in steelworks, presses or special machinery. This control, too, can be hooked up to a control network via Profibus DP or Ethernet TCP-IP.