The Allen-Bradley 1746-NO4I provides four channels of high-resolution analog current signaling for SLC 500 controllers. This module converts digital processor data into precise 0 to 20mA or 4 to 20mA signals. It effectively drives field devices like proportional valves, actuators, and motor drives. Furthermore, the 1746-NO4I integrates seamlessly into any standard SLC 500 I/O chassis. The compact single-slot design helps engineers maximize available cabinet space.
This module features 14-bit resolution to ensure smooth and accurate control of industrial processes. Although the architecture is non-isolated, the internal circuitry filters out electrical noise. This ensures signal integrity for standard-speed automation tasks. Consequently, the 1746-NO4I remains a cost-effective choice for systems where channel-to-channel isolation is unnecessary.
Essential Technical Specifications
- Manufacturer: Allen-Bradley / Rockwell Automation
- Model Number: 1746-NO4I
- Module Type: Analog Current Output
- Output Channels: 4 Points
- Signal Ranges: 0 to 20 mA or 4 to 20 mA
- Resolution: 14-Bit
- Backplane Current (5V DC): 55 mA
- Backplane Current (24V DC): 145 mA
- Conversion Method: Successive Approximation
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Product Weight: 0.2 kg
- Dimensions: 3.5 x 13 x 14.5 cm
- Origin: USA
Versatile Industrial Applications
The 1746-NO4I serves critical roles in manufacturing and chemical processing industries. It provides the steady current loops required for variable speed drive control. Moreover, the hardware supports advanced PID regulation for temperature and pressure systems. Users can configure the module quickly using RSLogix 500 programming software. This software compatibility reduces the time needed for system commissioning.
The module also handles the mechanical stresses of industrial environments. Durable terminal connections withstand the vibration common in heavy machinery. Additionally, front-panel LED indicators provide real-time status updates for every channel. These visual cues simplify the troubleshooting process for maintenance teams.
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