Overview
Output Configuration
The 1769-OA8 provides eight AC output channels divided into two groups, with four channels per group. Each group allows users to organize field output connections according to the control system’s wiring requirements.
Meanwhile, the module uses a 1/2-cycle signal delay for both turn-on and turn-off operations. This timing characteristic is relevant when evaluating output response in applications involving AC switching.
Electrical Characteristics and Wiring
The module operates across an 85 to 265 VAC input supply range for connected AC loads, with a supported frequency of 47 to 63 Hz. Its maximum bus current draw is 145 mA from the 5 VDC backplane supply, equivalent to 1.125 W.
Furthermore, the module supports both solid and stranded conductors. The specified wire sizes accommodate different wiring requirements, while DIN rail and panel mounting provide two installation options.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-OA8 |
| Brand | Allen Bradley |
| Product Type | AC Discrete Output Module |
| Product Line | CompactLogix |
| Module Type | Output Module |
| Part Number | 1769-OA8 |
| UPC | 662468992848 |
| Number of Outputs | 8 |
| Output Groups | 2 groups, 4 channels per group |
| Voltage Category | 120-240 VAC |
| Operating Voltage Range | 85-265 VAC |
| Operating Frequency | 47-63 Hz |
| Signal Delay | Turn-on: 1/2 cycle; Turn-off: 1/2 cycle |
| Backplane Current Draw | 145 mA at 5 VDC |
| Backplane Power Consumption | 1.125 W |
| Heat Dissipation | 2.12 W |
| Solid Wire Size | 22-14 AWG |
| Stranded Wire Size | 22-16 AWG |
| Power Supply Distance Rating | 8 |
| Mounting | DIN Rail; Panel Mount |
| Compatible Controllers | 1769 CompactLogix; MicroLogix 1500 |
| Compatible Power Supplies | 1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4 |
| Series | A and B |
| Weight | 0.26 kg (0.56 lbs) |
Frequently Asked Questions
Q: How many output channels does the 1769-OA8 provide?
A: The module provides eight AC discrete output channels, arranged in two groups of four channels each.
Q: What is the operating voltage range of the 1769-OA8?
A: The specified operating voltage range is 85 to 265 VAC, with an operating frequency of 47 to 63 Hz.
Q: Which controllers are compatible with the 1769-OA8?
A: The supplied specifications identify 1769 CompactLogix and MicroLogix 1500 controllers as compatible platforms. The applicable system configuration should be checked before installation.
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