Allen Bradley 1790D-TN0V2 CompactBlock LDX I/O Base Block Module

Product Introduction

The Allen-Bradley 1790D-TN0V2 CompactBlock LDX I/O Base Block Module is a compact analog output module designed for distributed industrial automation systems. Manufactured by Rockwell Automation under the Allen-Bradley product line, it belongs to the CompactBlock LDX series and provides reliable analog signal control at the machine level.

The module features 2 single-ended analog output channels, which allow the control system to send 0–10 VDC signals to actuators, valves, or other analog devices. Designed for DeviceNet distributed networks, the 1790D-TN0V2 enables analog outputs to be managed close to the equipment, reducing long wiring runs and improving installation efficiency.

Its open-style construction with an IP20 rating makes it suitable for mounting inside industrial control cabinets. With its compact size and integrated analog output functionality, the module provides a practical solution for controlling analog devices in machine automation and process control applications.

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Product Specifications

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Applications

• Industrial Process Control
Provides analog control signals to valves, actuators, and proportional devices in process systems.

• Machine Automation Systems
Controls analog devices such as motors, positioning drives, and variable equipment.

• DeviceNet Distributed I/O Networks
Integrates analog output functions into decentralized automation architectures.

• OEM Industrial Equipment
Installed in machine control panels to deliver precise analog outputs close to equipment.

• Factory Automation Lines
Used to manage analog actuation for automated production equipment.

• Laboratory or Test Systems
Provides analog output control in measurement and experimental setups.

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Advantages

• Compact Mechanical Design
Small footprint allows installation in limited panel space.

• Reliable Analog Output Control
Two analog output channels provide precise 0–10 VDC control signals.

• DeviceNet Network Compatibility
Integrates seamlessly with DeviceNet distributed automation systems.

• Reduced Wiring Requirements
Outputs are located near the equipment, reducing long analog cable runs.

• Flexible Industrial Applications
Compatible with a variety of actuators and analog control devices.

• Stable Industrial Performance
Designed for continuous operation in industrial environments.

FAQ

1. What devices can the analog outputs control?
   The outputs can drive valves, actuators, motors, and other analog devices that accept 0–10 V signals.

2. What does single-ended output mean for this module?
   Single-ended outputs are measured relative to a common reference ground rather than differential outputs.

3. How is analog output data transmitted to the module?
   Analog output values are sent from the control system via the DeviceNet network to the module.

4. Can both analog channels operate simultaneously?
   Yes. Both channels can output independent analog voltages at the same time.

5. How are analog devices connected to the module?
   Devices are wired to the module through standard terminal connections according to industrial wiring practices.

6. Is the module suitable for distributed automation systems?
   Yes. It is designed for use in decentralized I/O architectures with DeviceNet.

7. How does the module ensure stable output signals?
   Internal circuitry filters and conditions the analog signals to maintain stability and accuracy.

8. What types of industrial equipment typically use this module?
   It is commonly used in machine automation, process control systems, and factory automation lines.

9. Does the module require special installation procedures?
   No special procedures are needed; standard panel mounting and DeviceNet wiring practices apply.

10. How does the module help reduce wiring complexity?
    By locating analog outputs near actuators, long cable runs are minimized, simplifying installation and improving signal integrity.

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