Description
Bosch Rexroth VT-HNC100-4-3X/P-I-00/G04 R901134617
Product Introduction
The Bosch Rexroth VT-HNC100-4-3X/P-I-00/G04 is a four-axis digital hydraulic controller designed for coordinated control of electrohydraulic machinery. Bosch Rexroth’s VT-HNC100 family provides dedicated control functions for hydraulic axes rather than acting as a general-purpose PLC. The exact R901134617 configuration is identified as the four-axis version with PROFIBUS DP, incremental/SSI position transducer capability and the G04 four-axis synchronization option.
The controller can be configured for position, pressure, force, velocity and related hydraulic control functions. The published product information also identifies alternating position/pressure or position/force control, path-dependent deceleration and synchronization functions such as master/slave or mean-value principles. Feedback can be obtained from incremental or absolute SSI position transducers, while analog signals can be used for relevant command and actual-value interfaces.
For engineers working with Bosch Rexroth VT-HNC100-4-3X/P-I-00/G04, the important point is that the unit sits between the machine-level automation architecture and the hydraulic control loop. PROFIBUS DP provides the plant or machine controller interface, while the VT-HNC100 performs the dedicated hydraulic axis control. Published technical information specifies a 32-bit PowerPC processor, 24 VDC supply with an 18–30 VDC operating range, and approximately 4 A current consumption at 24 VDC.
The unit is programmed using the WIN-PED environment. Older documentation and product information should be treated carefully during modernization because the VT-HNC100 generation predates current PC operating-system environments; one product listing specifically notes that the associated WIN-PED version was not released for Windows 10.
Technical Specifications
| Specification | Details |
|---|---|
| Product Model | VT–4-3X/P-I-00/G04 |
| Order Number | R901134617 |
| Manufacturer | Bosch Rexroth |
| Product Type | Digital hydraulic axis controller |
| Number of Hydraulic Axes | 4 |
| Component Series | 3X |
| Fieldbus | PROFIBUS DP |
| Position Transducer | Incremental / SSI |
| Synchronization | Four-axis synchronization, G04 |
| Processor | 32-bit PowerPC |
| Supply Voltage | 24 VDC nominal |
| Supply Range | 18–30 VDC |
| Current Consumption | Approx. 4 A at 24 VDC |
| Programming Environment | WIN-PED |
| Service Interface | RS-232; TCP/IP option depending configuration |
| Mounting | DIN rail, TH 35-7.5 or TH 35-15 |
| Protection | IP20 |
| Approx. Weight | 960 g |
| Control Functions | Position, pressure, force, velocity and synchronization control |
The exact order-code structure confirms that 4 represents the four-hydraulic-axis version, P represents PROFIBUS DP, I represents incremental/SSI position transducer capability, 00 indicates no TCP/IP service-interface option, and G04 specifies four-axis synchronization.
VT-HNC100-4-3X/P-I-00/G04 R901134617
Main Features and Engineering Considerations
Four-Axis Hydraulic Control
The VT–4 is intended for machines where several hydraulic axes must be controlled and coordinated. The G04 option is particularly relevant where four axes need synchronized motion rather than four completely independent control loops.
PROFIBUS DP Integration
The P in the ordering code identifies the PROFIBUS DP version. This makes the controller suitable for integration with a machine PLC or higher-level automation system using PROFIBUS. The fieldbus should not be treated as a substitute for the controller’s local hydraulic feedback loop.
Incremental and SSI Feedback
The I configuration supports incremental/SSI position transducers. This is a critical replacement consideration. An existing machine may depend on a specific encoder supply, signal format, resolution, scaling or SSI configuration. Matching only the VT- order number without checking the installed transducer can leave the hydraulic axis unusable.
Closed-Loop Hydraulic Control
The VT- can handle position, pressure, force and velocity-related control strategies. Depending on the machine configuration, it may control proportional or servo hydraulic valves while receiving feedback from position or other process sensors. The exact control strategy is application-dependent and should be recovered from the existing machine documentation rather than assumed from the controller’s generic capability.
WIN-PED Dependency
Programming and commissioning are tied to the WIN-PED engineering environment. This creates a practical lifecycle issue for older installations. Before replacing or modifying a controller, preserve the existing application program, parameter set, axis configuration and engineering-PC environment. A replacement hardware unit without the correct application data is not equivalent to a fully commissioned machine controller.
Synchronization Parameters
Four-axis synchronization is one of the most important characteristics of the G04 version. Master/slave relationships, mean-value synchronization and axis scaling should be documented before any controller replacement. Incorrect synchronization parameters can produce mechanical stress even when each individual axis appears to operate normally.
Application Scenarios
- Hydraulic presses
- Metal forming equipment
- Injection molding machinery
- Test and simulation equipment
- Machine tools with electrohydraulic axes
- Multi-axis hydraulic positioning systems
- Hydraulic machinery requiring coordinated four-axis movement
- Industrial machines using PROFIBUS DP for PLC communication
Engineer’s Guide: Field Pitfalls
1. Do not substitute a three-axis or two-axis version solely because the electrical interfaces look similar.
R901134616, for example, is the two-axis G02 version, while R901134617 is the four-axis G04 configuration.
2. Verify the PROFIBUS configuration.
Check station address, baud-rate behavior, PLC hardware configuration and process-data mapping before commissioning.
3. Confirm the feedback device.
Incremental and SSI feedback are not interchangeable simply because both appear in the product specification. Encoder wiring, supply voltage, resolution and scaling must match the application.
4. Preserve the WIN-PED project.
Do not remove an old controller before extracting application parameters and configuration data. The controller hardware alone does not contain enough information to reconstruct a machine’s hydraulic behavior.
5. Check the G04 synchronization configuration.
Four-axis synchronization is application-specific. Record master/slave relationships, synchronization gains, scaling and limits before replacement.
6. Do not confuse this controller with a standard PLC motion module.
The VT- has hydraulic control functions integrated into its architecture. Replacing it with a generic PLC plus analog I/O changes the control architecture and requires a complete engineering review.
7. Verify the exact suffix.
VT- variants exist with CANopen, PROFINET RT, EtherNet/IP and other configurations. The P-I-00/G04 suffix is part of the functional identity of R901134617.
Frequently Asked Questions
What is Bosch Rexroth R901134617?
is the order number for VT–4-3X/P-I-00/G04, a four-axis digital hydraulic axis controller from Bosch Rexroth.
How many axes does t control?
The exact version is designed for four hydraulic axes. The G04 suffix identifies four-axis synchronization.
What communication protocol does use?
This configuration uses PROFIBUS DP. The P character in the ordering structure identifies the PROFIBUS version.
What type of position feedback is supported?
The I configuration supports incremental and SSI position transducers. Actual encoder compatibility must still be checked against the machine’s wiring and parameter configuration.
What software is used to program the VT-?
The VT- is programmed with WIN-PED. Legacy software compatibility should be checked before attempting commissioning on a modern engineering computer.
Is a PLC?
No. It is a dedicated digital hydraulic axis controller. It can communicate with a PLC through PROFIBUS DP, but its primary function is closed-loop hydraulic motion control.
What is the difference between and R901134616?
is the four-axis G04 version, while R901134616 is the two-axis G02 version. Both belong to the VT- 3X PROFIBUS/incremental-SSI family.
Procurement Note
For a replacement Bosch Rexro-3X/P-I-00/G04 , verify the complete ordering code rather than purchasing a VT- based only on the family name. The critical points are four-axis capacity, PROFIBUS DP, incremental/SSI feedback, G04 synchronization, 24 VDC supply, application software and existing hydraulic valve/feedback configuration.
For an operating machine, the most important pre-replacement documents are the WIN-PED application, hydraulic axis parameters, encoder specifications, PROFIBUS configuration, valve amplifier settings and synchronization parameters. A controller that powers up and communicates on PROFIBUS is not necessarily a functionally equivalent replacement until the hydraulic control loops have been validated.
