Description
🔧 Product Overview
The BOSCH REXROTH VT-HACD-1-13/V0/1-0-0 is a digital command value and controller card used in Bosch Rexroth Indramat hydraulic and motion-control systems. The associated material number is R900745354. It is identified as a VT-HACD Series digital axis controller/controller card and is designed for closed-loop control applications involving position, force, and pressure functions.
This version is a basic device without an integrated bus connection or valve output stage. It uses a microcontroller for control processing and supports incremental and SSI digital measurement systems. The front panel includes a display and four control keys for machine-data and diagnostic functions.
⚙️ Key Features
- 🏭 Manufacturer: Bosch Rexroth / Indramat
- 🔢 Model: VT-HACD-1-13/V0/1-0-0
- 📌 Material Number: R900745354
- 🧠 Digital command value and controller card
- 🎯 Designed for digital axis control
- 📐 Supports position control with force control or superimposed pressure
- 🔄 Compatible with incremental and SSI digital measurement systems
- 🖥️ Front display with four control keys
- ⚙️ Microcontroller-based control architecture
- 🔍 Monitoring of position sensors, memory, internal voltages and supply voltage
- 🔌 Analog outputs can be configured and adjusted
- 🚫 Basic version without integrated bus connection
- 🚫 No integrated valve output stage
- ⚡ Operating voltage: 21–30 VDC
- 🆕 Listing condition: New
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | BOSCH REXROTH |
| Model | VT-HACD-1-13/V0/1-0-0 |
| Material Number | R900745354 |
| Series | VT-HACD |
| Product Type | Digital Axis Controller / Control Board |
| Control Function | Digital command value and closed-loop controller |
| Measurement Inputs | Incremental and SSI digital measurement systems |
| Control Functions | Position control with force control or superimposed pressure |
| Operating Voltage | 21–30 VDC |
| Bus Interface | Not included in the basic version |
| Valve Output Stage | Not included |
| Display | Front display with 4 control keys |
| Controller | Microcontroller-based |
| Condition | New, according to supplied listing |
| Origin | Germany |
| Dimensions | Configuration-specific; verify against the installed unit |
| Weight | Not reliably specified |
🧩 VT-HACD Control System Integration
The VT-HACD controller is designed to form part of a larger hydraulic motion-control system rather than operate as a standalone PLC.
A typical control architecture can be represented as:
Machine Command → VT-HACD Controller → Closed-Loop Control → Hydraulic Control Equipment → Actuator → Position Feedback → VT-HACD
The controller processes command and feedback information to execute the configured control loops. Its support for incremental and SSI measurement systems allows it to work with different digital position-feedback arrangements.
The VT-HACD-1-13/V0/1-0-0 is the basic device version. Because it does not include a bus connection or valve output stage, the complete system normally requires additional compatible hardware for communication and hydraulic valve actuation.
🎯 Control & Measurement Functions
The controller supports multiple functions that are important in precision hydraulic motion systems.
Position Control
The VT-HACD can process position feedback from compatible digital measurement systems and use that information within the closed control loop.
Force / Pressure Control
The documented configuration supports position control combined with force control or superimposed pressure control. This makes the controller suitable for hydraulic applications where position and process force need to be coordinated.
Measurement Feedback
Supported measurement systems include:
- Incremental digital measurement systems
- SSI digital measurement systems
- Position-sensor monitoring
- Cable-break monitoring
Internal Diagnostics
The controller can monitor important internal conditions, including memory, microcontroller operation, reference voltage, internal voltages and supply voltage.
🖥️ Front Display & Configuration
The front panel provides a display and four configurable control keys. The interface is intended to support machine-data setup and diagnostic interaction.
The controller can provide dialog functions for machine-data settings in online and offline operating modes. A PC connection can be established using the appropriate standard or interference cable arrangement together with the BODAC PC program.
This makes the front-panel interface useful during commissioning and troubleshooting, while machine-specific parameters should always be preserved before replacing an installed controller.
🔌 Electrical & Interface Considerations
The controller operates from a 21–30 VDC supply. The basic version does not incorporate a bus connection or valve output stage, so system designers and maintenance technicians must verify the surrounding interface hardware before commissioning.
Important checks include:
- 24 V-class control power supply
- Digital position-feedback type
- Incremental or SSI interface configuration
- Analog output configuration
- External valve electronics
- External communication hardware
- Machine-specific parameter settings
- Correct cable and connector configuration
When replacing an existing unit, match the complete VT-HACD-1-13/V0/1-0-0 / R900745354 identification rather than selecting another VT-HACD card solely because it has a similar appearance.
🏭 Typical Applications
The VT-HACD controller is suited to industrial hydraulic motion-control equipment where accurate digital axis control is required.
Typical applications include:
- ⚙️ CNC machine tools
- 🏭 Industrial hydraulic machinery
- 🔩 Pressing and forming equipment
- 📐 Precision hydraulic positioning
- 🚜 Heavy-duty hydraulic automation
- 🔄 Closed-loop hydraulic axes
- 🏗️ Automated production machinery
- 🔧 Legacy Bosch Rexroth/Indramat control cabinets
- 📦 Replacement and long-term spare-parts inventory
🛠️ Installation & Maintenance
Before replacing a VT-HACD controller:
- 🔌 Shut down the machine using the approved machine procedure.
- ⚡ Isolate the control power and verify that the system is electrically safe.
- 📋 Record the original controller’s complete part number and configuration.
- 💾 Back up or document machine-specific parameters whenever possible.
- 🔌 Label all connected cables before removal.
- 🛡️ Use ESD protection when handling the controller board.
- 🧩 Install the replacement in the same system position.
- 🔗 Verify all feedback and external interface connections.
- ⚡ Check the supply voltage before applying power.
- 🖥️ Review diagnostic information after startup.
- 🎯 Test the axis at controlled operating conditions.
- 🏭 Return the equipment to production only after position and process-control functions have been verified.
For critical equipment, retaining one tested spare and one parameter/configuration backup can significantly reduce recovery time after controller failure.
🔍 Troubleshooting
Controller does not power up
Check the 21–30 VDC supply range, power wiring, fuse/protection devices and connector condition.
Position feedback is not detected
Verify whether the installed sensor uses the expected incremental or SSI interface. Inspect cable connections and check for cable-break indications.
Axis position is unstable
Check feedback quality, machine parameters, controller configuration and the external hydraulic control components before changing control settings.
Valve does not respond
Remember that this basic VT-HACD version does not include a valve output stage. Check the external valve amplifier/output electronics and their wiring.
Communication is unavailable
The basic version does not include an integrated bus connection. Verify the external communication arrangement and appropriate interface hardware.
Replacement controller starts but machine behavior differs
Machine-specific data may need to be restored or verified. Compare configuration and machine-data settings with the original controller before making further adjustments.
❓ FAQ
Q: What is Bosch Rexroth R900745354?
A: R900745354 is associated with the VT-HACD-1-13/V0/1-0-0 digital command value and controller card.
Q: Is the VT-HACD-1-13 a PLC?
A: It is better classified as a dedicated digital axis controller/control card for hydraulic motion systems rather than a general-purpose PLC.
Q: What feedback systems are supported?
A: The documented controller supports incremental and SSI digital measurement systems.
Q: Does this controller include a valve output stage?
A: No. The basic VT-HACD-1-13/V0/1-0-0 configuration does not include a valve output stage.
Q: Does it have a built-in fieldbus interface?
A: No. The basic configuration is specified without a bus connection.
Q: What voltage does it require?
A: The documented operating range is 21–30 VDC.
Q: What should I verify before purchasing?
A: Confirm the complete model designation, material number R900745354, hardware revision, feedback type, machine configuration and associated hydraulic interface hardware.
📦 Recommended Related Bosch Rexroth Models & Components
- BOSCH REXROTH VT-HACD-1-13/V0/1-0-0 R900745354 Control Card
- BOSCH REXROTH VT-HACD Series Digital Axis Controller
- BOSCH REXROTH VT-HACD-1X/HACD-PC Interface Cable
- BOSCH REXROTH BODAC PC Programming System
- BOSCH REXROTH VT-HACD Position Control Modules
- BOSCH REXROTH VT-HACD Force Control Modules
- BOSCH REXROTH VT-HACD SSI Measurement Interface Components
- BOSCH REXROTH VT-HACD Incremental Measurement Interface Components
- BOSCH REXROTH Hydraulic Valve Control Electronics
- BOSCH REXROTH Indramat Hydraulic Motion-Control Components
📌 Spare-Part Recommendation
The BOSCH REXROTH VT-HACD-1-13/V0/1-0-0 R900745354 is a specialized controller for hydraulic axis applications. Its lack of an integrated bus connection and valve output stage should be considered when planning a replacement.
For maintenance inventory, record the complete ordering code, hardware revision, connected feedback type, external valve electronics and machine-specific parameters. An exact part-number match is strongly preferred when replacing a controller in an existing Bosch Rexroth hydraulic system.
