REXRTOH HNC100-3X Electro hydraulic Motion Control

Rexroth HNC100-3X: A high-performance motion control core designed specifically for electro-hydraulic drive

In industrial applications that require high power density, extreme load capacity, and excellent reliability, hydraulic transmission technology has always held an irreplaceable position. However, integrating traditional hydraulic systems with modern precision motion control and high-level automation has always been a complex technological challenge. Bosch Rexroth, with decades of deep experience in the hydraulic field, has launched the HNC100-3X series programmable motion controller, designed specifically for electro-hydraulic drives. It successfully combines the power advantages of hydraulic with the precision and flexibility of intelligent control, becoming a key bridge connecting hydraulic drives and digital factories.

Introduction: Challenges and Opportunities Faced by Hydraulic Drive Automation

Hydraulic systems are widely used in key fields such as injection molding machines, presses, steel rolling equipment, and heavy engineering machinery due to their unparalleled power density, robustness, and impact resistance. However, traditional hydraulic control often relies on decentralized valves and simple relay logic. When implementing complex, multi axis synchronous, and high dynamic precision motion control, it often faces problems such as system complexity, difficult debugging, low energy efficiency, and insufficient repeatability.

The birth of the Rexroth HNC100-3X was precisely to solve these problems. It is not a simple universal controller, but a motion control solution deeply optimized for hydraulic physical characteristics. It draws on the unique experience gained by Rexroth in thousands of practical application projects, integrating hydraulic drive technology, closed-loop control technology, and modern automation software engineering, aiming to provide machine manufacturers with an advanced control platform that is easier to implement, performs better, and has a lower total cost of ownership.

System positioning and core design philosophy: openness, scalability, and ease of use

HNC100-3X is positioned as an "all-around player" in the field of hydraulic drive control, and its core design concept revolves around three key points:

1. Excellent openness:

The controller supports mainstream fieldbus (such as PROFIBUS DP) and industrial Ethernet (such as PROFINET, EtherNet/IP), making it easy to integrate into any existing automation architecture, whether as a distributed slave or an independent multi axis controller. Its free program programmability and open access to all control parameters allow users to implement any complex motion sequence, effectively protecting the core application knowledge of device manufacturers.

2. Fine scalability of hardware and software:

This is one of the most attractive features of HNC100-3X. Rexroth adheres to and optimizes its mature bundled I/O strategy, providing users with a continuous and scalable path from hardware to software:

On the hardware level, the product line covers everything from ultra compact single axis integrated modules (with a depth of 108mm and a width of only 34mm) to modular construction kits that can control up to 4 electro-hydraulic axes. Users can accurately select based on the number of axes and the required number of analog/digital I/O points (such as voltage/current input/output, SSI/incremental encoder interfaces) to avoid resource waste.

At the software level, the controller firmware integrates comprehensive control, process, and monitoring functions, and all functional modules are already "on board". Users only need to activate the corresponding license according to their actual application needs to use it. This' on-demand activation 'mode achieves precise matching of functionality and cost.

3. Usability throughout:

From engineering design, parameter debugging to fault diagnosis, usability permeates every aspect. The specialized engineering software WIN-PED 7 provides an intuitive graphical interface and step-by-step guidance, significantly reducing the programming threshold. The integrated real-time diagnostic tool WinView can record all PLC and process variables in up to 16 channels, providing powerful data support for analyzing intermittent faults and optimizing machine performance.

Deep analysis of hardware architecture: Born for harsh industrial environments

The hardware design of HNC100-3X fully considers the reliability requirements of industrial applications.

1. Mechanical and electrical characteristics:

All models are installed using 35mm top cap rails (EN 60715), with a compact and sturdy structure. Its working voltage is 18-30 VDC, suitable for industrial standard DC power supply. The controller complies with the CE mark (following the EMC directive 2004/109/EC) and meets strict standards such as EN 60068-2 in terms of vibration resistance, impact resistance, and heat resistance, ensuring stable operation in harsh industrial environments.

2. Scalable I/O resources (taking multi axis modules as an example):

As the number of control axes increases, the resources provided by the controller increase linearly, which is a clear manifestation of its bundled I/O strategy: