Allen Bradley 1771-OA AC Output Module
$123.00
$320.00
Description
Allen Bradley 1771-OA AC Output Module
The Allen Bradley 1771-OA, also cataloged as the 1771-OA AC Output Module, operates as a dedicated hardware component for discrete AC switching control within PLC-5 1771 I/O chassis platforms. The module provides eight 120 VAC solid-state output channels with rack-mounted installation and field wiring through the 1771-WA wiring arm.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-OA |
| Brand | Allen Bradley |
| Origin | United States |
| Weight | 1.61 lbs |
| Power Consumption | 1.1-10.7 W power dissipation; 210 mA backplane current |
| Module Type | AC Output Module |
| Product Line | PLC-5 / 1771 Product Bulletin |
| Number of Outputs | 8 Outputs |
| Output Type | Discrete AC solid-state output |
| Output Voltage | 120 VAC nominal |
| Operating Voltage Range | 92-138 VAC |
| Output Frequency | 47-63 Hz |
| Continuous Current Per Output | 1.5 A |
| Maximum Current Per Module | 6 A |
| Thermal Dissipation | 3.4-36.6 BTU/hr |
| Data Format | BDC or Natural Binary |
| Signal Delay (AC Off) | 45 +/- 15 ms |
| Compatible Chassis | 1771 I/O chassis |
| Wiring Arm Compatibility | 1771-WA / 1771-WH |
| Mounting Type | Rack mountable |
| Keying Position | Between 4 and 6; Between 12 and 14 |
PLC-5 AC Output Switching Interface
The 1771-OA provides eight discrete AC output channels for PLC-5 controller applications. Each channel switches 120 VAC field loads within the specified voltage range and supports continuous output current up to 1.5 A per channel.
The module communicates through the 1771 chassis backplane and integrates with PLC-5 I/O density scaling configurations. The single-slot design allows installation in compatible 1771 I/O chassis assemblies.
The module uses PLC-5 deterministic backplane communication for output command transfer. BDC and Natural Binary data formats are supported for controller data table compatibility.
Industrial Control and Backplane Compatibility
The 1771-OA uses Allen Bradley 1771 platform hardware architecture with rack-based I/O addressing. Backplane bus communication transfers output state information between the PLC processor and the module electronics.
The module supports firmware flash compatibility practices applicable to the PLC-5 hardware generation. Configuration depends on chassis slot assignment, processor compatibility, and installed I/O addressing parameters.
The AC output circuitry is isolated from PLC logic through the module design to separate field voltage switching from controller signal processing.
Frequently Asked Questions
Q: How many output channels are available on the 1771-OA module?
A: The 1771-OA provides eight discrete AC output channels.
Q: What is the rated output voltage of the 1771-OA?
A: The module provides 120 VAC nominal output with an operating range of 92-138 VAC.
Q: What backplane current is required by the 1771-OA?
A: The module requires 210 mA backplane current from the 1771 I/O chassis supply.
Field Installation Guidelines
Install the 1771-OA module in a compatible 1771 I/O chassis slot and verify chassis keying before insertion. Use the designated 1771-WA or 1771-WH wiring arm for field connections.
Route AC output wiring separately from low-level analog signal cables and communication wiring to reduce electrical interference. Verify field device voltage ratings and load current requirements before energizing outputs.
Tighten wiring connections according to the specified terminal hardware requirements. Confirm output addressing, chassis configuration, and PLC-5 controller programming before commissioning the module.
Follow electrostatic discharge precautions when handling the module during installation or maintenance.
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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