Bosch Rexroth Indramat VT Amplifiers & Drive Controllers – Sales, Repair, Support

Wake Industrial proudly offers a comprehensive range of VT Amplifier Cards to meet your needs. Whether you need to buy a replacement unit, repair a faulty card, or even upgrade your system, Wake Industrial has the expertise and inventory to support you. Upgrade or restore your Bosch Rexroth Indramat systems with our range of VT-Series amplifier sand controllers. Indramat’s VT series includes high-performance proportional valve amplifiers, servo valve drivers, and digital axis controllers used in industrial hydraulic and motion control systems. Whether you need a replacement unit or a fast repair, contact Wake Industrial now by filling out the quote form embedded on the page or by calling 1-919-443-0207.

Indramat VT-HNC100 Digital Axis Controllers

The VT-HNC100 series (often simply called VT HNC100) is a family of digital NC drive controllers designed for complex electro-hydraulic motion tasks. Unlike analog amplifier cards, the HNC100 units are intelligent controllers: each is a programmable numeric control (NC) device for up to four axes, tailored for closed-loop hydraulic drive control. These controllers combine motion programming with hydraulic regulation, enabling precise positioning and synchronization in multi-axis systems (e.g. for press controls, injection molding machines, or servo-hydraulic test stands).

A specific example, VT-HNC100-1-23/W-08-P-0, illustrates the capabilities of this series. This model is configured with 1 hydraulic axis in a wall-mount housing and includes 8 digital I/O points for integration with sensors and actuators. It belongs to the 2X series (component series 23) and features a PROFIBUS-DP fieldbus connection for communication with higher-level PLCs or PC-based systems. In essence, the HNC100 controller can receive motion profiles or setpoints via fieldbus, then execute the closed-loop control by commanding Indramat proportional valves (via companion VT amplifier cards) and reading feedback from transducers (pressure, position sensors, etc.).

Ensure peak performance: If you depend on a VT-HNC100 digital axis controller, keeping it in service is crucial. We offer repair services for VT-HNC100 units (resolving faults in power sections, I/O boards, or communication ports), as well as replacement units if the controller is beyond repair. Given that these controllers are central to your machine’s brain, we work quickly to provide a solution. Contact Wake Industrial by calling 1-877-922-1048 for VT-HNC100 support, and we’ll help maintain or restore the precise motion control your application requires.

Indramat VT-3000 & VT-3002 Series – Directional/Pressure Valve Amplifiers

The VT-3000 Analog Amplifiers are Indramat’s workhorse control cards for proportional valves, capable of driving pilot-operated directional valves (e.g. Rexroth WRZ up to series 6) and direct-operated pressure valves (3DREP6/DBEP6 models). Operating from a 24 VDC supply, a VT3000 card converts an input command voltage into a proportional output current to the valve solenoid. Each card includes four adjustable command value potentiometers (to fine-tune max inputs) and LED indicators on the front panel for at-glance status monitoring. A built-in voltage stabilizer and ramp generator ensure smooth performance – the ramp generator allows acceleration/deceleration adjustments (factory-set to 5 s, switchable to 1 s) to reduce hydraulic shocks. The output stage uses high-frequency pulse-width modulation (PWM) to minimize valve hysteresis and heat.

In the VT-3000 family, VT3002 refers to the associated card holders and extender modules used to mount these amplifier cards in a rack. For example, a model VT3002-1-2X/32D is a specific VT3002 card configuration designed to house VT series cards with standardized connectors. (The VT-2000 and VT-3000 cards share compatibility with VT-3002 Eurocard racks.) VT3002 units essentially serve as the backplane that provides easy integration of amplifiers into larger control systems.

Need a VT-3000 series amplifier or card holder? Wake Industrial has VT3000 cards and VT3002 racks in stock. We provide repair services for malfunctioning cards and replacement units with straightforward pricing (no rush fees). Request a quote or repair now by sending an email to sales@wakeindustrial.com and get your directional or pressure control loops back online fast.

Indramat VT-1600 Servo Amplifiers – Precision Servo Valve Control

For high-precision motion control with hydraulic servo valves, the VT-1600 Servo Amplifier series is a top choice. These analog cards are used to drive servo valves without LVDT feedback, typically in closed-loop hydraulic axis applications. A VT1600 module operates on 24 VDC power (drawing <200 mA) and outputs a controlled ±60 mA or ±100 mA current to the valve coil. Internal control voltage spans 2 V to ±10 V, accommodating standard command signals. Designed to hold tight tolerances, VT1600 amplifiers (like the VT1610S3X) help achieve stable actuator positioning even in demanding environments (0–50 °C ambient rating).

Key features include built-in signal differential inputs for noise immunity and adjustable parameters (via jumpers or potentiometers) to fine-tune the servo performance. By omitting LVDT feedback, the VT1600 focuses on controlling flow/pressure to the servo valve based on external loop feedback (e.g. from a motion controller), making it simpler yet effective for many hydraulic axes.

Keep your servo systems running: Our team at Wake Industrial stocks and services VT1600 series cards. We offer 1-year warranted repairs that address common issues (drift, output faults, etc.) and quality refurbished units ready to swap in. Don’t let a faulty servo amplifier halt your production – contact Wake Industrial via the quote form above. Simply click here to navigate to the quote form!

Indramat VT-VSPA1 & VT-VSPA2 Proportional Valve Amplifiers

The VT-VSPA series represents Bosch Rexroth’s versatile proportional valve amplifiers, often used for controlling pressure or flow in systems without direct feedback. VT-VSPA1-1-11 is a typical model in this line – a compact electronic card that precisely controls solenoid current to a proportional valve without LVDT position feedback. It operates on a +24 VDC supply (allowing +40%/−5% variation) and uses a standard 32-pin Eurocard connector for installation. With its fixed component series 11, the VSPA1-1-11 provides dependable current regulation for single-coil proportional valves (commonly pressure regulators). Front-panel LEDs and easy-to-access potentiometers simplify setup and diagnostics.

The VT-VSPA2 series is an enhanced variant with additional capabilities. For instance, the VT-VSPA2-1-2X/V0/T1 amplifier card features dual input modes (accepting both analog command voltages and a 4–20 mA current input) and includes a DC/DC converter power supply for stable operation. It’s designed in the 100×160 mm Eurocard form factor (per DIN 41494) and typically mounts in a 19-inch rack system. Advanced functions on VSPA2 units include an inrush current limiter to protect against power surges and a green status LED that confirms normal operation. The model VT-VSPA2-1-2X/V0/T1 also integrates fault detection (monitoring output stage overcurrent) and uses an exchangeable fuse for safety. Zero point adjustment is provided (up to ±30%) to calibrate valve neutral position, and enabling the card requires a specific jumper setting sequence during commissioning.

Indramat VT-VRRA (VT-VRPA Series) Electric Amplifiers

The VT-VRRA models (part of the Indramat VT-VRPA electric amplifier series) are high-performance electronic amplifiers used for precision control in electro-hydraulic systems. A representative unit like VT-VRRA 1-527-20/V0/2STV is engineered to run on a 24 VDC nominal supply and consumes relatively low power, typically <7 VA with <0.3 A supply current for standard versions. These units accept analog command inputs of 0 to ±10 V (high impedance >100 kΩ) and can provide proportional ±10 V outputs for feedback or monitoring. They offer very flexible ramp time adjustments — from as fast as 20 ms up to 50 s — allowing fine control over how quickly a hydraulic actuator responds to changes. This makes VT-VRRA amplifiers suitable for applications requiring gentle motion transitions or soft pressure build-up.

Physically, VT-VRRA cards adhere to the Eurocard standard (100×160 mm, typically 48-pin DIN connectors) for easy slot-in installation. They are often found in advanced hydraulic systems where multiple command signals (voltage or current) and outputs need to be managed. For example, a VRRA card might take a ±10 V command from a PLC and drive a proportional valve while simultaneously outputting feedback voltage and limiting ramps to prevent shocks.

Indramat VT-5000 Series I/O Cards

The VT-5000 series I/O cards are a line of sophisticated valve amplifier and interface cards, designed to integrate into Bosch Rexroth’s VT-5000 rack systems for complex hydraulic control. A notable example is the VT 5041-23/1-0V card, which is engineered for precise control of hydraulic actuators in demanding environments. This card supports proportional directional valve control, accepting a ±10 V analog command input and delivering up to 2.5 A output current to drive valve solenoids. Compliance with DIN 41612/41494 means the VT5041 card uses a standard 32-pin connector and a 100×160 mm form factor, ensuring it slots perfectly into a VT-5000 series rack.

What sets the VT-5000 series apart is the inclusion of multiple command channels and advanced conditioning on the card. The VT5041, for instance, can interface with commands for pressure, swivel angle, and power control simultaneously, each with high input impedance (>50 kΩ) to avoid loading the signal source. The card employs a high-frequency oscillator (~5.4 kHz PWM) to drive the valve, achieving stable and fine control of the hydraulic outputs. It even has internal leakage compensation and differential amplification to improve accuracy in closed-loop control. The heavy-duty construction (die-cast alloy housing) provides excellent thermal dissipation, with an operating range from -40 °F to 250 °F to withstand harsh industrial conditions. These cards are typically used in large machinery, mobile hydraulics, machine tools, and process automation where multi-faceted control (pressure, position, force) is needed.

Indramat VT-MSPA2 Modular Amplifiers

The VT-MSPA2 series represents a more modern, modular approach to Indramat valve amplifiers. These units (often mounted as standalone modules rather than card inserts) are engineered for precise control of proportional valves without electronic feedback – similar in purpose to VSPA cards, but in a compact module form. For example, the VT-MSPA2-2X/A5/000/000 (also referenced as VT-MSPA2-2X-A5-000-000) is a lightweight (<0.15 kg) amplifier module that operates on 24 VDC and consumes under 48 W of power. Despite its small size, it packs an intuitive interface: all valve parameters are adjustable via onboard pushbuttons, making tuning and commissioning very fast. In fact, the MSPA2 modules come pre-loaded with standard valve characteristic curves, so engineers can deploy them quickly in hydraulic systems.

Key features of VT-MSPA2 amplifiers include an internal clocked power output stage (for efficient current control), a command value input range of 0–10 V (compatible with PLC analog outputs), and adjustable up/down ramp generators to smooth out actuator motion. LED status indicators provide immediate feedback on operational status, and built-in measuring sockets allow technicians to read actual current and command values during setup. Importantly, the output stage is short-circuiting proof and offers a zero-point adjustment function to perfectly center the valve’s neutral position.

Indramat VT-2000 Series – Proportional Pressure Valve Amplifiers

The VT-2000 series are analog proportional amplifiers designed for controlling single-solenoid hydraulic pressure control valves without electrical feedback. These plug-in amplifier cards run on 24 VDC power and feature differential analog inputs with an adjustable ramp generator for smooth pressure buildup and release. A built-in voltage stabilizer ensures consistent performance even if supply voltage fluctuates. Notably, VT2000 units include “S” model variants that allow separate on/off switching for up and down ramps, giving more control flexibility. The VT2000 series is available in standard Eurocard format (VT 2000 S 45) and works with VT3002 card holders (like the VT 3002-1-20-32D) for rack mounting.

In-stock support: If your VT2000 amplifier is failing or you need a spare, Wake Industrial can help. We offer fully tested replacements and expert repair services for VT-2000 cards, backed by a 1-year warranty and fast turnaround. Contact us to request a repair or quote for a replacement VT-2000 series amplifier today!

Get Your Indramat VT Series Equipment Running – Contact Wake Industrial

Don’t let a faulty amplifier or controller bring your production to a halt. Wake Industrial is your reliable partner for Bosch Rexroth Indramat VT-series products – from the smallest amplifier card to the most advanced multi-axis controller. We understand the technical intricacies of these units and carry a large inventory of refurbished VT amplifiers.

Ready to restore your system’s performance? Contact us today to request a quote or schedule a repair. Wake Industrial will promptly provide the Bosch Rexroth Indramat VT amplifiers or controllers you need – and ensure they work flawlessly in your application. Let us help you keep your operations running efficiently with top-notch replacement parts and repair services for all Indramat VT series products.