The Allen Bradley 1746-NO8V is an 8-channel analog voltage output module from the SLC 500 series, engineered for precise control in industrial automation systems. Delivering high-resolution voltage outputs, it is ideal for applications requiring accurate analog signal control, such as modulating valves, variable frequency drives, and other process control equipment.
Technical Specifications:
- Manufacturer: Allen Bradley (Rockwell Automation)
- Model: 1746-NO8V
- Series: SLC 500
- Module Type: Analog Voltage Output
- Number of Outputs: 8
- Output Voltage Ranges: -10 to +10V DC; -10.25 to +10.25V DC; 0 to 10V DC; 0 to 5V DC; 1 to 5V DC
- Resolution: 16-bit (320 µV/count)
- Accuracy: ±0.1% of full scale at 25°C; ±0.2% at 60°C
- Update Time: 5 ms for all 8 channels (Class 1 mode)
- Step Response: 1 ms (0–95% of full scale)
- Load Range: 1 kΩ or greater
- Maximum Load Current: 10 mA per channel
- Output Impedance: Less than 1.0 Ω
- Backplane Current: 120 mA @ 5 VDC; 160 mA @ 24 VDC (J4 jumper set to RACK)
- Backplane Power Consumption: 5.6 W
- Mounting: Rack-mounted in 1746 chassis (any slot except slot 0)
- Isolation: 500 VDC between field wiring and backplane
- Certifications: UL, CE, CSA; suitable for Class I, Division 2 hazardous locations
- Discontinued Date: September 30, 2024
Key Features:
- 8-channel analog voltage output with high-resolution 16-bit DAC
- Multiple configurable voltage output ranges per channel
- Fast update and response times for precise control
- Removable terminal block for simplified wiring and maintenance
- LED indicators for module and channel status monitoring
- Software-configurable parameters including scaling, clamping, and fault responses
Compatible Components & Accessories:
- Allen-Bradley SLC 500 processors (e.g., 1747-L531, 1747-L541)
- 1746 series I/O chassis and power supplies
- RSLogix 500 programming software
- PanelView HMIs and communication modules
Industry Applications:
- Process control in chemical and pharmaceutical industries
- Water and wastewater treatment facilities
- Food and beverage processing
- HVAC systems and building automation
- Manufacturing automation requiring precise analog control
Installation & Maintenance Notes:
- Ensure proper alignment when inserting into the chassis slot
- Power down the system before installing or removing the module
- Configure module settings using RSLogix 500 software
- Set J4 jumper to select between backplane or external 24 VDC power supply
- Periodically inspect for dust accumulation and electrical wear
- Maintain ambient operating temperature between 0°C to 60°C (32°F to 140°F)
Request a Quote:
For pricing and availability, please Contact Us or call 1-800-755-2883.
Disclaimer: TCI Supply is not an authorized distributor of Allen-Bradley products.
Frequently Asked Questions
What voltage output ranges are available on the 1746-NO8V?
The module supports configurable output ranges per channel: -10 to +10V DC; -10.25 to +10.25V DC; 0 to 10V DC; 0 to 5V DC; and 1 to 5V DC.
How many analog outputs does the 1746-NO8V provide?
The 1746-NO8V provides 8 single-ended analog voltage output channels.
Is the 1746-NO8V compatible with all SLC 500 processors?
Yes, it is compatible with all SLC 500 processors and can be installed in any slot of a 1746 chassis except slot 0.
What is the resolution of the analog outputs?
The module offers 16-bit resolution, equating to 320 µV per count.
Does the 1746-NO8V include built-in diagnostics?
Yes, it features LED indicators for each output channel and the module itself, providing immediate visual status updates.