Allen Bradley 1771-OAD Digital AC Output Module
$123.00
$320.00
Description
Allen Bradley 1771-OAD Digital AC Output Module
The Allen Bradley 1771-OAD, also cataloged as the 1771-OAD Digital AC Output Module, operates as a dedicated hardware component for discrete AC load switching within PLC-5 1771 I/O chassis platforms. The module provides sixteen programmable AC output channels with zero-crossing switching and PLC backplane communication.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-OAD |
| Brand | Allen Bradley |
| Origin | United States |
| Weight | 1.75 lbs |
| Power Consumption | Backplane current: 0.7 A at 5 VDC / 1.5 A specified in module data |
| Module Type | Digital AC Output Module |
| Product Line | PLC-5 |
| Number of Outputs | 16 Outputs |
| Output Type | Digital AC solid-state output |
| Voltage Category | 120 VAC |
| Operating Voltage Range | 10-138 VAC |
| Frequency Range | 50/60 Hz |
| Maximum Continuous Current Per Output | 2 A |
| Maximum Current Per Module | 8 A |
| Data Format | BDC or Natural Binary |
| Typical AC Signal Delay (Off) | 45 +/- 15 ms |
| Off to On Signal Delay | Zero crossing: 8.3 ms at 60 Hz; 10.0 ms at 50 Hz |
| Wiring Arm Compatibility | 1771-WH |
| Mounting Type | Rack Mountable |
| Terminal Type | Screw Terminal |
PLC-5 Digital AC Output Control
The 1771-OAD provides sixteen programmable digital AC output channels for PLC-5 controller applications. The module converts PLC processor output commands into AC switching signals for connected field devices within the 1771 I/O architecture.
The module supports a 12-120 VAC voltage category with an operating range of 10-138 VAC. Zero-crossing switching is used for output transition timing, reducing switching stress during AC load activation.
The 1771-OAD communicates through the PLC-5 backplane bus and supports BDC and Natural Binary data formats. The module occupies a rack slot in compatible 1771 I/O chassis configurations and uses 1771-WH field wiring connections.
Industrial Control Backplane Integration
The 1771-OAD is designed for PLC-5 I/O density scaling with sixteen discrete output points in a single module. Backplane bus communication transfers controller output states to the module logic circuitry.
The module supports PLC-5 deterministic backplane communication characteristics rather than network-based distributed I/O operation. Hardware configuration requires correct chassis slot selection, processor compatibility, and I/O addressing assignment.
Firmware flash compatibility is not specified for this PLC-5 generation module. Operation depends on hardware configuration, controller programming, and installed chassis components.
Frequently Asked Questions
Q: How many output channels are provided by the 1771-OAD?
A: The 1771-OAD provides sixteen digital AC output channels.
Q: What AC voltage range does the 1771-OAD support?
A: The module supports a 10-138 VAC operating range within the 12-120 VAC voltage category.
Q: What is the maximum current capacity of each output channel?
A: Each output channel supports a maximum continuous current of 2 A, with a maximum module current rating of 8 A.
Field Installation Guidelines
Install the 1771-OAD module only in compatible 1771 I/O chassis slots. The module is not compatible with 1771-A1, 1771-A2, or 1771-A4 chassis configurations. Verify chassis keying and slot assignment before insertion.
Connect field devices using the 1771-WH wiring arm and confirm AC voltage polarity and load requirements before energizing outputs. Route AC output wiring separately from low-level signal cables and communication wiring.
Ensure connected loads remain within the specified output current limits. Follow electrostatic discharge precautions when handling the module and verify PLC-5 configuration parameters before system operation.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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