Description
Technical Specifications
- Product Model: Rexroth VT-HNC100-1-23W-08-S-0
- Brand: Bosch Rexroth
- Warranty: One Year
- Input Voltage: 18–36 VDC (24 VDC nominal)
- Operating Temperature: 0°C to +50°C
- Storage Temperature: -20°C to +70°C
- Response Time: Control cycle as low as 1 ms depending on control mode
- Protection Class: IP20 (for cabinet or rack installation)
- Accuracy Class: High-precision closed-loop control for position, velocity, and pressure
- Output Frequency: Real-time motion control signals for servo/proportional valves
- Rated Current Range: Approx. 0.8–1.5 A depending on configuration
- Communication Interface: RS-232 service port; optional fieldbus interface
- Supported Protocols: PROFIBUS-DP, CANopen, INTERBUS-S (configuration dependent)
- Overload Capacity: Integrated monitoring and protection for sensor faults and control limits
- Processor: 16/32-bit MC68376 motion controller processor
- Memory: 1 MB Flash EPROM, 8 KB EEPROM, 256 KB RAM
- Digital I/O: 8 configurable digital inputs/outputs
- Dimensions: Approx. 71 × 155 × 204 mm
- Mounting Type: Panel or 19-inch rack mounting
Product Overview
The Rexroth VT-HNC100-1-23W-08-S-0 is a programmable digital axis controller designed for precise control of electro-hydraulic or electromechanical drive systems. Developed by Bosch Rexroth as part of the VT-HNC100 series, the module enables high-accuracy motion control for industrial machinery that requires precise position, velocity, or pressure/force regulation.
This controller is commonly used to manage single hydraulic axes, providing real-time closed-loop control by processing feedback signals from sensors such as incremental encoders, SSI absolute encoders, or analog measurement devices. It then generates control outputs for servo or proportional valves to regulate actuator movement with high precision.
Equipped with a powerful motion processor and integrated NC functionality, the controller can execute complex control algorithms independently from the main PLC, significantly improving system responsiveness and motion accuracy. Multiple communication interfaces allow the controller to integrate with PLCs, DCS platforms, and higher-level automation systems.
Because of its reliable performance and flexible configuration, Bosch Rexroth motion controllers in this series are widely used in hydraulic presses, plastic injection machines, machine tools, and industrial test stands, where precise motion control and synchronization are essential.
Key Functions
Electro-Hydraulic Axis Control
The controller performs closed-loop control of hydraulic actuators, regulating position, speed, and pressure through advanced control algorithms. It directly drives servo or proportional valves using ±10 V command outputs to maintain accurate actuator movement.
Multi-Mode Motion Control
The module supports several control modes including position control (PDT1), velocity control (PI), and pressure/force control (PIDT1). Engineers can configure the control strategy according to application requirements such as pressing force control or high-precision positioning.
Flexible Sensor Integration
The system accepts multiple feedback signal types, including incremental encoders, SSI absolute encoders, ±10 V analog signals, and 4–20 mA inputs. This flexibility allows the controller to interface with various displacement sensors, pressure transducers, or load cells.
Industrial Communication and Diagnostics
A built-in RS-232 service interface enables parameterization, diagnostics, and firmware configuration. Optional fieldbus connections such as PROFIBUS-DP or CANopen allow integration with plant automation systems for synchronized motion control.
Integrated Monitoring and Safety Logic
The controller includes diagnostic functions such as encoder cable break detection, position limit monitoring, and following-error supervision, helping maintain safe and reliable operation in demanding industrial environments.
Application Scenarios
Hydraulic Press and Metal Forming Machines
In metal forming or stamping presses, the controller regulates hydraulic cylinder position and pressing force with high repeatability. This ensures consistent forming quality while protecting machinery from overload.
Plastic Injection Molding Systems
Injection molding machines rely on precise control of clamping and injection axes. The controller coordinates hydraulic motion to maintain stable pressure and positioning throughout the molding cycle.
Industrial Test Benches
Material testing systems require precise force or displacement control. The controller enables accurate measurement and control of load conditions, making it suitable for fatigue testing or structural testing equipment.
Machine Tools and Production Automation
In machine tools and automated production equipment, the controller manages motion sequences, axis synchronization, and feedback monitoring, ensuring accurate positioning and stable machine operation.
