Features:
- High-Density 16-Bit Precision Current Output
- Flexible External Power Supply Selection and Diagnostic Capabilities
- Removable Terminal Block and Hazardous Environment Certification
The Allen-Bradley 1769-OF8C integrates eight analog current output channels within a single module width, employing 16-bit digital-to-analog conversion technology to achieve an effective resolution of 15.59 bits (0.323μA/bit) in the 4-20mA range. This module offers two standard output ranges: 0-20mA and 4-20mA, with an overall accuracy of ±0.35% of full scale at 25°C, meeting the stringent requirements for fine-tuning continuous current signals in process control.
The Allen-Bradley 1769-OF8C supports selection via internal DIP switches for backplane bus power supply or independent external NEC Class 2 24V DC power supply, enhancing field wiring flexibility. The module features comprehensive diagnostic functions including open-circuit detection, out-of-range/under-range reporting, and short-circuit protection. The output circuit status can be monitored in real-time via status bits, facilitating rapid troubleshooting in the field.
The Allen-Bradley 1769-OF8C is equipped with a removable terminal block (RTB), supporting "power off without disconnecting wires" maintenance, greatly simplifying the module replacement process. The module is certified for Class I Division 2 Groups A, B, C, and D hazardous environments, with temperature code T4A and an operating temperature range of 0-60℃, making it suitable for industrial environments such as petroleum and chemical plants where flammable and explosive gases may be present.
The 1769-OF8C Allen-Bradley8-Channel 4-20mA Analog Current Output Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen-Bradley 1769-OF8C 8-Channel 4-20mA Analog Current Output Module Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Allen-Bradley 1769-OF8C 8-Channel 4-20mA Analog Current Output Module
General
- Manufacturer Allen-Bradley
- Model 1769-OF8C
- Condition New Original ready stock
- Product Family 1769-IF4, 1769-IF8, 1769-OF2
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Hazardous Environment Certification: Certified by Class I Division 2 Groups A, B, C, D, temperature code T4A, suitable for industrial environments with flammable gases or vapors.
- Electrical Isolation: Provides 500V AC/710V DC 1-minute isolation test between output groups and the backplane bus, protecting sensitive backplane logic from external surges.
- Overcurrent and Short Circuit Protection: Output channels have short-circuit and overcurrent protection functions, with a maximum short-circuit current limited to 21mA.
- International Certification Compliance: Complies with CE, UKCA, and c-UL-us certification standards, meeting the safety requirements of industrial control equipment in North America and Europe.
- Open Circuit/Load Fault Detection: Reports open circuit or excessive load resistance faults in the output circuit via status bits, facilitating rapid on-site problem location.
Out-of-Range/Under-Range Alarm: The module triggers an alarm bit when the output value exceeds the normal operating range, automatically resetting upon returning to normal.
- Real-Time Output Data Control: The controller directly writes integer values to each channel via the output data file; the module switches between all channels at a 5ms rate.
- External Power Supply Monitoring: A flashing status LED on the module indicates an external 24V power supply fault; the input data file contains the external power supply status bit.
- Petroleum & Chemical Industry: Using safety barriers to drive current-type actuators, achieving precise closed-loop PID control of reactor temperature and pipeline pressure.
- Water Treatment & Environmental Protection: Controlling the frequency converter of the dosing pump to adjust the flocculant dosage and regulating the opening of the outlet valve to achieve constant pressure water supply.
- Manufacturing & Automotive Industry: Controlling the pressure of robotic welding torches, frequency conversion speed regulation of conveyor belts, and proportional valve positioning in painting lines within automated production lines.