{"product_id":"allen-bradley-1771-oa-8-channel-ac-output-module","title":"Allen Bradley 1771-OA 8-Channel AC Output Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen Bradley 1771-OA\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1771-OA\u003c\/strong\u003e Output Module, operates as a dedicated hardware component for discrete signal actuation within PLC-5 I\/O chassis platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1771-OA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.00 lbs (0.45 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1771 I\/O module form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard industrial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1.1 - 10.7 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Points\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e92 - 138 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e1.5 A per channel \/ 6 A per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProfinet \/ EtherNet\/IP Deterministic Networks\u003c\/h3\u003e\n\u003cp\u003eThe 1771-OA integrates into the PLC-5 system architecture to facilitate discrete signal execution via the 1771 I\/O chassis backplane. The module translates backplane bus commands into 120 VAC outputs, with deterministic timing characteristics defined by an Off-state signal delay of 45 (+\/- 15) ms. Firmware flash compatibility is intrinsically linked to the PLC-5 processor scan cycle. I\/O density scaling is managed by the rack configuration, with the module occupying a single slot in the chassis. Consistent backplane bus communication velocity is maintained through the standard 1771 backplane interface, ensuring reliable status reporting to the CPU.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 1771-OA be used with DC loads?\u003c\/p\u003e\n\u003cp\u003eA: No. The 1771-OA is specifically designed for 92 - 138 VAC applications. Utilizing this module with DC loads will prevent proper turn-off of the triac output, potentially resulting in load damage or module failure.\u003c\/p\u003e\n\u003cp\u003eQ: What are the keying requirements for this module?\u003c\/p\u003e\n\u003cp\u003eA: The module must be keyed to prevent installation in incorrect chassis slots. The field wiring arm interface must be keyed between pins 4 and 6, and between pins 12 and 14 to match the module configuration.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Preparation:\u003c\/strong\u003e Power down the 1771 I\/O chassis before module insertion. Configure the backplane keying tabs to match the 4-6 and 12-14 positions specified for the 1771-OA.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Arm Installation:\u003c\/strong\u003e Attach the 1771-WA or 1771-WH wiring arm to the module. Ensure the arm is locked into the operating position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque Specifications:\u003c\/strong\u003e Tighten all wiring arm terminal screws to a torque of 7-9 inch-pounds. Insufficient torque can cause high-resistance connections and potential heat build-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoad Circuitry:\u003c\/strong\u003e Ensure that the total continuous current for the module does not exceed 6 Amperes, and that no individual channel exceeds 1.5 Amperes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Verification:\u003c\/strong\u003e Confirm output status using the diagnostic indicators on the module front panel. Verify that AC load leakage currents do not affect the state of high-impedance input devices connected to the output.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53523379749048,"sku":"1771-OA","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1771-OA.jpg?v=1780027237","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1771-oa-8-channel-ac-output-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}