Description
1769-OF8C A-B Programmable controller
Product Dimensions：
Product Description
The Allen-Bradley 1769-OF8C is an 8-channel analog output module designed for use with CompactLogix and MicroLogix 1500 programmable logic controllers. It provides high-resolution current outputs and is used to control analog devices such as actuators, valves, drives, and other industrial equipment requiring precise analog control signals. Each channel is individually configurable and provides isolated outputs for improved system reliability and noise immunity.
Product Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 8 single-ended current outputs |
| Output Type | Current (4–20 mA) |
| Resolution | 16 bits |
| Update Rate | 5 ms per channel (typical) |
| Output Range | 4–20 mA, user-configurable |
| Isolation | Channel-to-channel, channel-to-backplane |
| Accuracy | ±0.1% of full scale |
| Load Resistance | 0–750 ohms (at 20 mA) |
| Power Dissipation | 3.5 W max |
| Backplane Current | 200 mA at 5V DC |
| Operating Temperature | 0–60 °C (32–140 °F) |
| Storage Temperature | –40–85 °C (–40–185 °F) |
| Humidity | 5–95% (non-condensing) |
| Vibration | 5 g at 10–500 Hz |
| Shock | 30 g |
| Certifications | CE, C-Tick, KC, UL, cUL |
Product Advantages
- High Precision & Resolution: 16-bit resolution ensures fine control over analog devices.
- Channel Isolation: Each channel is isolated, reducing cross-talk and improving signal integrity.
- Flexible Configuration: Each output can be individually configured for 4–20 mA range.
- Wide Compatibility: Works seamlessly with CompactLogix and MicroLogix 1500 systems.
- Robust Industrial Design: Withstands harsh environments, including temperature extremes and vibration.
- Ease of Integration: Easily installed in 1769 I/O chassis and auto-detected by Studio 5000 and RSLogix 5000 software.
Precautions
- Wiring Guidelines: Use shielded twisted-pair cables to minimize noise interference.
- Load Limits: Ensure connected devices do not exceed the maximum load resistance of 750 ohms.
- Power Supply: Verify adequate backplane power to support the module’s current requirements.
- Grounding: Proper grounding is essential to avoid ground loops and ensure measurement accuracy.
- Environmental Conditions: Do not exceed the specified temperature and humidity ranges.
- Maintenance: Periodically inspect connections and clean module vents if applicable to prevent overheating.
Product Applications
- Process Control: Control valves, dampers, and variable speed drives in manufacturing.
- Chemical Dosing Systems: Precise control of metering pumps and flow regulators.
- HVAC Systems: Modulate control of heating, cooling, and ventilation actuators.
- Water/Wastewater Treatment: Manage chemical feed rates, valve positions, and pump speeds.
- Motion Control: Interface with servo and stepper drives for position and speed control.
- Test Stands & Automation: Analog output for test equipment calibration and simulation.
- Energy Management: Control power modulation in generators and energy storage systems.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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