Description
🔹 Product Overview
The Rexroth Bosch VT-HACD-1-15/V0/1-0-0 is a digital command-value and controller card from the VT-HACD series, designed for closed-loop hydraulic axis control and industrial machine automation.
This controller provides two control loops, a front display, and an RS232 service interface. The basic configuration has no optional bus interface and no integrated valve output stage, allowing it to work as the central digital controller within a larger hydraulic control architecture.
The model is also identified by alternative references such as VTHACD115V0100. Available technical references associate the unit with material number R900745354; however, some marketplace listings show different material numbers for visually similar units, so the complete type code and nameplate should always be matched before replacement.
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | BOSCH REXROTH |
| Model | VT-HACD-1-15/V0/1-0-0 |
| Series | VT-HACD Digital Axis Controller |
| Product Name | Digital Command Value and Controller Card |
| Product Type | Hydraulic Axis Controller / Industrial Control Board |
| Control Loops | 2 |
| Component Series | 15 |
| Supply Voltage | 24 VDC |
| Service Interface | RS232 |
| Card Dimensions | 100 × 160 mm |
Additional published specifications include 6 analog inputs, 3 analog outputs, a 2 ms scan/control cycle, 4 A time-lag fuse rating, and approximately 0.2 kg weight.
⚙️ Key Features
- Digital command-value and controller card for hydraulic automation.
- Two independent control loops.
- Microcontroller-based process and closed-loop control.
- Integrated front display for parameter and diagnostic information.
- RS232 service interface for PC-based parameterization.
- Six analog inputs and three analog outputs.
- 24 VDC nominal operating supply.
- 100 × 160 mm plug-in card format.
- Designed for installation in industrial control cabinets.
- Suitable for legacy Rexroth hydraulic control systems where exact replacement hardware is required.
🏭 Hydraulic & Industrial Application
The VT-HACD controller is intended for hydraulic drive and axis-control applications where command values, feedback signals, and control algorithms need to be processed digitally.
Typical applications include:
- Hydraulic bending machines
- Forging equipment
- Injection molding machinery
- Metallurgical hydraulic systems
- Machine tools
- Hydraulic positioning systems
- Industrial forming equipment
- Closed-loop hydraulic actuators
The controller can process command and feedback information while coordinating the configured control loops. Because the basic version does not include a valve output stage, the overall system may require an appropriate external valve amplifier or drive interface.
🔌 System Integration
When integrating this board into an existing Rexroth hydraulic control system, verify the complete control architecture rather than relying only on the product family name.
Important compatibility points include:
- VT-HACD type designation
- Material number
- Component series
- Control-loop configuration
- Analog input/output assignment
- Feedback device
- External valve amplifier
- 24 VDC supply
- RS232 service connection
- Existing machine parameters
- Rack and connector configuration
The V0/1-0-0 configuration indicates a specific hardware and option combination. Similar-looking VT-HACD cards should not automatically be treated as direct replacements.
🔧 Installation & Maintenance
Before installation, isolate electrical and hydraulic energy according to the machine’s maintenance procedure.
- Record the original controller type and material number.
- Photograph all connectors and wiring.
- Confirm the complete VT-HACD-1-15/V0/1-0-0 designation.
- Inspect the card and connector contacts.
- Verify the rack and mounting position.
- Confirm the 24 VDC supply.
- Check analog signal wiring and feedback connections.
- Verify the external valve-control stage.
- Restore power and inspect the display for diagnostic messages.
- Test the hydraulic axis at low risk before returning to production.
For long-term storage, use ESD protection and keep the board in a dry, clean environment.
🛠️ Troubleshooting
The controller does not power up:
Check the 24 VDC supply, fuse, rack connection, and connector contacts.
The hydraulic axis does not respond:
Check command-value wiring, analog I/O configuration, external valve amplification, and hydraulic enable signals.
The feedback value is incorrect:
Verify the feedback device, signal wiring, scaling, and configured input channel.
The controller displays a fault:
Record the displayed diagnostic information and compare it with the machine’s original parameter configuration before changing settings.
A replacement board does not operate like the original:
Verify the complete type code, component series, material number, firmware/configuration, and machine-specific parameters. A similar VT-HACD board may have a different option configuration.
✅ First-Operation Checklist
- Confirm VT-HACD-1-15/V0/1-0-0.
- Verify the material number on the actual nameplate.
- Confirm 24 VDC supply.
- Inspect the card and connector pins.
- Verify correct rack position.
- Check all analog input/output wiring.
- Verify feedback connections.
- Confirm external valve amplifier/interface.
- Check controller display and diagnostic status.
- Perform a controlled hydraulic-axis test.
❓ FAQ
What is the Rexroth VT-HACD-1-15/V0/1-0-0?
It is a digital command-value and controller card in the Bosch Rexroth VT-HACD digital axis controller family.
How many control loops does it have?
The published configuration provides two control loops.
What is the operating voltage?
The nominal supply voltage is 24 VDC.
Does this version include a valve output stage?
The listed configuration is specified without a valve output stage, so the complete hydraulic system must be checked for the required external valve-control hardware.
Can it be used as a replacement for another VT-HACD board?
Only after verifying the complete type designation, material number, option configuration, I/O requirements, and machine parameters.
What software/service connection is used?
The controller provides an RS232 service interface for parameterization and diagnostic access.
🔟 Related BOSCH REXROTH Models / Series
- VT-HACD-1-15/V0/1-0-0 — Digital Command Value and Controller Card
- VT-HACD Series — Digital Axis Controllers
- VT-HACD-1 Series — Digital Hydraulic Controller Family
- VT-HACD Digital Command Value Controllers
- VT-HACD Controller Cards with Display
- Rexroth Digital Hydraulic Axis Controllers
- Rexroth VT Series Hydraulic Control Cards
- Rexroth Proportional Valve Amplifier Modules
- Rexroth Hydraulic Closed-Loop Control Modules
- Rexroth Industrial Hydraulic Control Boards
Related series are provided for spare-parts planning only. They are not direct substitutes unless the complete hardware configuration and machine application are confirmed.
📦 Spare-Parts & Lifecycle Planning
For older Rexroth hydraulic systems, the VT-HACD controller can be a critical control-system spare. A replacement strategy should preserve the exact configuration rather than relying only on physical similarity.
Recommended practices include:
- Primary spare: Maintain at least one verified replacement controller for critical equipment.
- Configuration record: Store the exact type code, material number, installed parameters, and I/O assignment.
- Incoming inspection: Check board markings, connectors, display, and physical condition.
- Functional testing: Record power-up and diagnostic test results before placing the unit into stock.
- ABC classification: Treat critical hydraulic controllers as high-impact maintenance spares.
- Buffer stock: Increase safety stock for machines with long downtime costs.
- Last-time-buy planning: Monitor availability of legacy VT-HACD components and plan procurement in advance.
- Replacement traceability: Record installation date, machine location, controller identification, and commissioning results.
