Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bosch Rexroth |
| Model | VT-HNC100-4-3X/P-I-00/G04 |
| Order Number | R901134617 |
| Product Type | Hydraulic Numerical Control / Axis Controller |
| Series | VT-HNC100 |
| Component Series | 3X |
| Controlled Axes | 4 hydraulic axes |
| Bus Interface | PROFIBUS DP |
| PROFIBUS Speed | Up to 12 MBaud |
| Feedback Interface | Incremental / SSI position transducer |
| Processor | 32-bit PowerPC |
| Service Interface | RS232 for WIN-PED 6 / WIN-PED 7 |
| TCP/IP | Not included in the -00 configuration |
| Synchronism | G04 — 4-axis synchronism |
| Minimum Cycle Time | 2 ms for applicable PROFINET/EtherNet/IP variants |
| Cyclic I/O Data | Up to 992 bytes for applicable Ethernet variants |
| Installation | DIN rail, TH 35-7.5 or TH 35-15 |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -20°C to +70°C |
| Protection Class | IP20 |
| Weight | Approximately 960 g |
| Application | Hydraulic and electrohydraulic motion control |
The ordering code is important here. Bosch Rexroth’s VT-HNC100 coding identifies 4 as the four-axis version, 3X as the component series, P as PROFIBUS DP, I as incremental/SSI position transducer, 00 as no TCP/IP fitting, and G04 as four-axis synchronism.
Application Scenarios & Pain Points
A four-cylinder hydraulic machine can stay mechanically healthy while its controller slowly becomes the bottleneck: synchronization errors, pressure overshoot, or position drift may appear only under certain loads. That is where the HNC100 architecture earns its place.
- Hydraulic presses: Four-axis position or force control can be coordinated when cylinder movement must remain synchronized rather than simply commanded independently.
- Injection molding and forming equipment: Position, pressure, and force control can be configured according to the machine sequence.
- Hydraulic test equipment: Closed-loop feedback from incremental or SSI transducers provides the controller with the actual axis position required for regulation.
- Multi-axis hydraulic machinery: The G04 option is specifically associated with four-axis synchronism, making it relevant where master/slave or mean-value synchronization is required.
Field note: When troubleshooting an HNC100 system, separate the control problem from the hydraulic problem. Check transducer feedback, valve electronics, hydraulic pressure, and bus communication before replacing the controller. A drifting cylinder position signal can look like a controller tuning fault.
VT-HNC100-2-30
Related Products
- Bosch Rexroth VT-HNC100-1-3X/P-I-00/000 — One-axis version using the same general architecture. Appropriate for single hydraulic-axis applications, not four-axis coordinated machinery.
- Bosch Rexroth VT–2-3X/P-I-00/G02 — Two-axis PROFIBUS DP version with G02 two-axis synchronism. A closer alternative when the machine only requires two coordinated hydraulic axes.
- Bosch Rexroth VT–3-3X/P-I-00/G03 — Three-axis version with G03 synchronism. Functionally similar architecture, but the axis count differs.
- Bosch Rexroth VT–4-3X/P-I-00/000 — Four-axis P-I controller without the G04 synchronism option. Useful where four independent axes are required but four-axis synchronization is not part of the application.
- Bosch Rexroth VT–4-3X/C-I-00/000 — Four-axis CANopen variant. The bus interface differs from the PROFIBUS version, so it is not a direct communication-compatible substitute.
- Bosch Rexroth VT–4-3X/N-I-00/G04 — Four-axis version with PROFINET RT and G04 synchronism. Relevant for newer Ethernet-based control architectures, but the communication infrastructure must support the corresponding interface.
- Bosch Rexroth VT–4-3X/E-I-00/G04 — Four-axis EtherNet/IP variant with the same G04 synchronism concept. Consider it only where the control network is EtherNet/IP based.
The Engineer’s Guide: Field Pitfalls to Avoid
⚠️ Do not replace R901134617 with another simply because it controls four axes.
The bus and feedback configuration are encoded in the model number. P-I indicates PROFIBUS DP with incremental/SSI feedback, while other variants use CANopen, PROFINET RT, or EtherNet/IP.
How to avoid it: Match the complete ordering code, especially P-I-00-G04.
⚠️ Do not overlook the G04 suffix.
The final G04 is not cosmetic. It identifies the four-axis synchronism configuration.
How to avoid it: Check the machine’s hydraulic synchronization strategy and existing WIN-PED project before ordering a replacement.
⚠️ Do not assume the old programming environment can be replaced with a current PC without checking first.
The documentation identifies WIN-PED 6 / WIN-PED 7 as the service/programming interface and notes that WIN-PED 7 is not released for Windows 10 in the referenced material.
How to avoid it: Preserve the existing project files, parameter backups, controller configuration, and programming workstation before removing the original unit.
Frequently Asked Questions (FAQ)
What is Bosch Rexroth VT–4-3X/P-I-00/G04 R901134617?
It is a four-axis hydraulic numerical controller in the VT- family. It is configured for PROFIBUS DP, incremental/SSI position feedback, and four-axis synchronism.
How many hydraulic axes can R901134617 control?
The version is designed for up to four hydraulic axes. The G04 suffix specifically identifies the four-axis synchronism option.
What communication protocs VT-/P-I-00/G04 use?
The P designation specifies PROFIBUS DP, with a maximum bus rate of 12 MBaud according to the available technical data.
Does R901134617 support position feedback?
Yes. The I designation corresponds to incremental/SSI position transducer support. The broader architecture can use actual-value feedback for position and related hydraulic control functions.
Can I replace h VT-/P-I-00/000?
Mechanically and by basic axis count, it is closely related, but not necessarily functionally equivalent. The original R901134617 includes G04 four-axis synchronism, while the /000 version does not specify that option.
What should I verify before purchasing a replacement?
For a plant replacement, I would verify:
- Complete type code: VT-/P-I-00/G04
- PROFIBUS DP network configuration
- Incremental/SSI transducer type
- Four-axis synchronization requirement
- WIN-PED project and parameter backup
- Hydraulic valve configuration
- Controller firmware/hardware revision
- DIN-rail installation and wiring
- Functional testing of all four axes
