Allen-Bradley 1746-NIO4V 2-channel voltage output analog combination module

Description

Allen-Bradley 1746-NIO4V 2-channel voltage output analog combination module

Product Dimensions：

The Allen-Bradley 1746-NIO4V is a versatile analog combination module designed for the SLC 500 modular hardware platform. It offers a compact solution by providing both input and output capabilities on a single card, which is ideal for systems with limited rack space.

1. Product Description

The 1746-NIO4V belongs to the SLC 500 family of I/O modules. It features two analog input channels and two analog voltage output channels.

• Inputs: Designed to receive signals from sensors like pressure transducers or flow meters.

• Outputs: Specifically designed to provide voltage-based signals to control devices such as variable frequency drives (VFDs) or valves.

2. Technical Specifications

3. Key Advantages

• Space Efficiency: By combining inputs and outputs into a single slot, it reduces the physical footprint of the PLC system.

• High Resolution: The 14-bit resolution ensures precise control and monitoring, which is critical for fine-tuned industrial processes.

• Configurability: Input channels can be independently configured for either voltage or current, allowing for mixed-sensor environments.

• Reliability: Built with the rugged standards of the SLC 500 series, it is designed for long-term operation in harsh industrial environments.

4. Usage Considerations & Precautions

• Voltage Output Only: Note the “V” in the part number—the outputs are voltage only. If you require current outputs (4-20mA), you would need the 1746-NIO4I model.

• Proper Shielding: To prevent electromagnetic interference (EMI), always use shielded twisted-pair cables for analog signals and ground the shield at one end only.

• Heat Dissipation: Ensure the PLC rack has adequate ventilation, as analog modules generate more heat than standard digital I/O.

• Power Cycling: Always remove power from the SLC 500 chassis before inserting or removing the module to avoid damaging the backplane.

5. Typical Applications

The 1746-NIO4V is commonly used in applications requiring a feedback loop (PID control), such as:

• Speed Control: Sending a -10V to +10V signal to a motor drive while receiving speed feedback.

• Temperature Regulation: Controlling a heating valve based on a temperature sensor input.

• Pressure Monitoring: Maintaining constant pressure in a hydraulic system by adjusting a proportional valve.

Shipping Port: Xiamen, China

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