Bosch Rexroth VT-HNC100-1-23N-08-P-0 Digital Axis Controller

The Bosch Rexroth VT-HNC100-1-23N-08-P-0 is a programmable digital NC controller developed for closed-loop control of electro-hydraulic axes. This advanced axis controller meets the specific requirements of hydraulic drive closed-loop control and can also be adapted for electric drive applications. As part of the VT-HNC100 series, this single-axis version delivers precise control for demanding motion control applications in industrial automation.

Technical Specifications

The VT-HNC100-1-23N-08-P-0 is a single-axis version of the HNC100 controller family, supporting 8 or 24 digital inputs and outputs depending on the specific configuration. The device belongs to the 2X component series with unchanged installation and connection dimensions, facilitating straightforward replacement and system integration. The controller complies with EC directives and carries CE marking, demonstrating its adherence to European safety and environmental standards.

Design and Environmental Durability

The Bosch Rexroth VT-HNC100-1-23N-08-P-0 exhibits excellent immunity to electromagnetic interference, making it suitable for installation in environments with significant electrical noise from variable frequency drives, welding equipment or other industrial machinery. The controller offers outstanding mechanical vibration and shock resistance, ensuring reliable operation even when mounted on machinery subject to continuous motion or impact forces. The robust construction and weather-resistant design make the VT-HNC100-1-23N-08-P-0 suitable for harsh industrial environments where temperature fluctuations, humidity and airborne contaminants are present.

Core Controller Functions

The VT-HNC100-1-23N-08-P-0 includes two primary controller types to address different application requirements. The position controller employs a PDT1 controller architecture with linear gain characteristic curves. Direction-dependent gain adjustment allows the controller to compensate for asymmetries in hydraulic systems where extending and retracting behaviors differ. The bending gain characteristic curve can be modified through NC programs to adjust gain dynamically during operation, optimizing performance across varying operating conditions.

The controller incorporates fine positioning capabilities using residual voltage principles with zero error compensation. State feedback and command value feedforward mechanisms improve tracking accuracy and reduce following error during dynamic moves. Limit control output can be configured through NC programs, and position-dependent braking enhances stopping accuracy at travel endpoints. For applications requiring coordinated motion, the controller supports two-axis synchronous control, enabling gantry or master-slave configurations.

The pressure and force controller option utilizes a PIDT1 controller architecture with component I that can be cut in and out through a window function. Differential pressure evaluation functionality provides accurate monitoring of pressure differentials across hydraulic circuits, essential for applications such as clamping or pressing operations.

Programming and Configuration

Users program the VT-HNC100-1-23N-08-P-0 through a standard PC using NC language with subroutine technology and conditional jumps, enabling the creation of exclusive NC programs for specific functional sequences. Multiple HNC100 parameters can be set through the local CAN bus, providing flexible system configuration. Data management is accomplished conveniently on a PC, and parameter modifications can be performed quickly using the BB-3 handheld control box or BF-1 control panel.

The WIN-PED software configuration tool provides convenient dialogue functions for online or offline setting of machine data. The NC editor includes syntax checking and program compilation capabilities, reducing programming errors and debugging time. The software supports definition of parameters used in NC programs and offers dialogue windows for setting parameter values online. Multiple options are available for displaying process data, digital I/O status and flag bits, with graphical recording and display of up to four process variables using selectable trigger options.

Applications

The Bosch Rexroth VT-HNC100-1-23N-08-P-0 is deployed across a diverse range of industrial equipment requiring precise hydraulic axis control. Machine tool applications include milling machines, lathes and grinding machines where hydraulic axes control tool positioning and workpiece handling. Plastic processing machines benefit from the controller ability to manage injection molding presses and extrusion equipment with precise pressure and position control.

Special machinery applications include custom automation equipment requiring coordinated hydraulic motion. Presses and stamping equipment utilize the controller for ram position and force control during forming operations. Transfer lines in automotive manufacturing employ the VT-HNC100-1-23N-08-P-0 for workpiece positioning and tool actuation. Rail bound vehicles use the controller for door operation, suspension control and other hydraulic functions requiring precise closed-loop regulation.