Product Overview

The 1769-OF4VI is an analog output module from Allen-Bradley. This module is a voltage type of output module designed for the CompactLogix series. The 1769-OF4VI has 4 outputs that are all individually isolated. This module can support an earth ground connection for enhanced safety. Furthermore, the terminal block used by this module can be replaced if it breaks or wears over time. Consequently, the 1769-OF4VI offers long-term serviceability and reduced maintenance costs. The replacement door part number for this module is 1769-RD.

Technical Specifications

Manufacturer: Rockwell Automation
Brand: Allen-Bradley
Part Number/Catalog No.: 1769-OF4VI
Product line: CompactLogix
Module type: Analog Current Output Module
Communication cable: 4 Point
Series: A and B
UPC: 10781180908641
UNSPSC: 32151705

Output Specifications

Number of outputs: 4 individually isolated outputs
Voltage output range: 0 to 10 V
Full-scale range: 0 to 10.5 V
Resolution: 15-bit at 330 μV per bit
Maximum output current load: 5 mA
Resistive load range: ≤ 2 kΩ
Capacitive load per output: 1 μF
Maximum short-circuit current: 42 mA (protected)
Power-up response time: < 0.4 ms
Power-down response time: < 21 ms

The 1769-OF4VI features four individually isolated outputs for optimal signal integrity. Each output provides a voltage range from 0 to 10 V with a full-scale extension to 10.5 V. The 15-bit resolution at 330 μV per bit delivers precise analog control. Consequently, the 1769-OF4VI is ideal for applications requiring high accuracy. The module is protected from short-circuiting and can sustain a maximum short-circuit current of 42 mA without damage.

Power and Electrical Specifications

Bus current at 5 V DC: 165 mA
Power dissipation: 2.0 Watts
Operating voltage: 30 V DC with IEC Class 2 reinforced insulation
Conversion rate (maximum): 120 ms
Limited voltage per current: 2.9 ms
Output ripple: ±0.05% at 0 to 50 kHz
Module error: ±0.8%

The 1769-OF4VI draws 165 mA from the 5V DC bus. It dissipates only 2.0 Watts of heat during normal operation. Therefore, this module has minimal impact on system power and thermal budgets. The maximum conversion rate of 120 ms ensures timely updates for control loops. The output ripple of ±0.05% at 0 to 50 kHz provides clean analog signals for sensitive loads.

Accuracy and Drift Specifications

Field calibration required: No
Drift accuracy margin: ±0.0086% of full scale per °C
Accuracy margin: ±0.5%
Module error: ±0.8%

The 1769-OF4VI requires no field calibration, which simplifies commissioning and reduces maintenance. The drift accuracy margin of ±0.0086% FS per °C ensures stable performance across temperature variations. Consequently, the 1769-OF4VI maintains accuracy without frequent recalibration. The overall module error of ±0.8% is within acceptable limits for most industrial analog control applications.

Physical Dimensions and Weight

Dimensions (height x width x depth): 4.65 x 1.38 x 3.43 inches (118 x 35 x 87 mm)
Approximate weight: 0.60 lbs (0.27 kg)
Shipping weight: 2 lbs (0.91 kg)
Shipping dimensions: 8 x 8 x 5 inches (203 x 203 x 127 mm)
Power supply distance rating: 8-module distance

The 1769-OF4VI has a compact form factor that saves valuable panel space. The power supply distance rating of 8 modules provides flexibility in rack layout. Therefore, you can place this module up to eight slots away from the system power supply. The replacement door part number 1769-RD is available separately for damaged units.

Wiring and Cable Specifications

Wire type: Copper with 90 °C insulation rating
Solid wire size: 22 to 14 AWG (0.32 to 2.1 mm²)
Stranded wire size: 22 to 16 AWG (0.32 to 1.3 mm²)
Terminal block: Replaceable type

The 1769-OF4VI accepts both solid and stranded copper wire. Use wire with 90 °C minimum insulation rating for safety compliance. The replaceable terminal block design allows easy repair without replacing the entire module. Consequently, the 1769-OF4VI offers long-term cost savings and reduced downtime for maintenance.

Installation Guidelines

1. First, disconnect all system power before installing the 1769-OF4VI.
2. Then, mount the module on DIN rail or panel using the mounting tabs.
3. Ensure proper earth ground connection for safety protection.
4. Next, connect the analog output wires to the terminal block.
5. Use 22 to 14 AWG solid copper wire or 22 to 16 AWG stranded wire.
6. After that, insert the terminal block into the 1769-OF4VI module.
7. Verify that each output load resistance is ≤ 2 kΩ for proper operation.
8. Do not exceed 5 mA output current per channel on the 1769-OF4VI.
9. Then, apply power and verify correct module operation.
10. Finally, configure the output ranges in your control program.

Packaging List

- 1 x 1769-OF4VI analog output module
- 1 x Terminal block (replaceable type)
- 1 x Mounting tab hardware kit for DIN rail or panel
- 1 x Installation and configuration instruction sheet
- 1 x Anti-static protective bag for component safety

Common FAQ

1. What is the output voltage range of the 1769-OF4VI?
The 1769-OF4VI has an output voltage range of 0 to 10 V. The full-scale range extends to 10.5 V for additional headroom.

2. Does the 1769-OF4VI require field calibration?
No, the 1769-OF4VI requires no field calibration. This simplifies installation and reduces long-term maintenance costs significantly.

3. What is the resolution of the 1769-OF4VI?
The 1769-OF4VI provides 15-bit resolution at 330 μV per bit. Therefore, it delivers precise analog voltage control for demanding applications.

4. Can I replace the terminal block on the 1769-OF4VI?
Yes, the terminal block on the 1769-OF4VI is replaceable. The module supports replacement if the terminal block breaks or wears over time.

5. What is the maximum output current load for this module?
The maximum output current load is 5 mA for the 1769-OF4VI. The resistive load must be ≤ 2 kΩ for proper operation within specifications.