Controllers have predefined function blocks.

Press Release Summary:




Digital HACD controllers create electrohydraulic and electromechanical motion sequences with assemblies in Euro-card format. Predefined function blocks are linked and need no prior programming knowledge. Controller provides 6 analog and 9 digital inputs and interface for digital SSI or incremental position measuring system. System can be configured using BODAC® Software on PC with Windows operating system.



Original Press Release:



New Rexroth Closed-Loop Control Electronics: Digital Open and Closed-Loop Controlling Without Programming



Creating electrohydraulic and electromechanical motion sequences flexibly and precisely without requiring any programming knowledge: This is possible with the new family of digital HACD controllers by Rexroth. With these controller assemblies in Euro-card format, applications can be realized simply by linking predefined function blocks. No programming knowledge is required for parameterizing the freely configurable closed-loop control electronics.

The HACD optimizes the characteristics of hydraulic drives with open and closed-loop control algorithms tailored to the specific requirements of hydraulics. The plug-in card comprises the functionalities of open-loop controlled traversing, closed-loop controls of position, velocity and pressure/force and, in the HACD-2 dual closed control loop variant, alternating controls. The electronics offer numerous possibilities of determining motion sequences and linking signals. The HACD can also be used as command value card for generating, linking and normalizing signals.

The ramp generator can be used to create acceleration and deceleration ramps and round them together in the form of S-type ramps. Different ramp times can be saved in blocks or controlled by means of analog signals.

HACD closed-loop control electronics are provided with 6 analog inputs that can be switched by means of software and 9 digital inputs as well as an interface for a digital SSI or incremental position measuring system. 8 digital and 3 analog outputs allow the realization of numerous system solutions.

The system can be easily configured and parameterized with the help of the BODAC® Software (Bosch Rexroth Operator interface for Digital Axis Controllers) on a PC with Windows operating system. In addition, this user-friendly software offers a variety of diagnosis tools for maintenance and commissioning such as visualization of process data (oscilloscope function).

Bosch Rexroth AG, a one-hundred-percent owned subsidiary of Robert Bosch GmbH, achieved sales of 3.62 billion Euro in 2002 with approximately 25,500 employees. The company was formed in May 2001 by the merger of Bosch Automationstechnik and Mannesmann Rexroth and now combines under the brand name of Rexroth the range of products and services of the former brands of Bosch Automation, Brueninghaus Hydromatik, Indramat, Lohmann + Stolterfoht, Mecman, Refu, Rexroth Hydraulics and Star. Rexroth offers all relevant drive, control and motion technologies: from mechanics, hydraulics and pneumatics through to electronics as well as the associated services - and in around 80 countries worldwide

All Topics