Allen-Bradley 1769-OV16​ Compact I/O 16-Point 24V DC Sinking Transistor Output Module for CompactLogix & MicroLogix 1500

Product Overview

The Allen-Bradley 1769-OV16​ is a 16-point, 24 V DC sinking (NPN) solid-state digital output module that belongs to Rockwell Automation’s 1769 Compact I/O product family, designed for direct integration into CompactLogix L1x/L2x/L3x programmable automation controllers as well as MicroLogix 1500 expansion racks. Engineered around high-reliability N-channel MOSFET transistor outputs, the Allen-Bradley 1769-OV16​ switches 24 V DC field loads—such as solenoid valves, indicator lights, small DC relays, and interposing relay coils—by sinking current from the load return to the module’s common terminal (0 V DC), which is connected to the negative of the external 24 V DC supply. All sixteen output points share a single isolated common group, simplifying field wiring for uniform load types while maintaining reinforced optical isolation (tested at 1200 V AC / 1697 V DC for 1 s) between the output circuits and the 5 V DC backplane logic to protect the controller from field-side transients.Each output point on the Allen-Bradley 1769-OV16​ is rated for up to 0.5 A continuous at 60 °C (1.0 A at 30 °C) with a module aggregate maximum of 4.0 A at 60 °C (8.0 A at 30 °C), and features a typical turn-on delay of 0.1 ms and turn-off delay of 1.0 ms, making it well suited to moderate-speed discrete control and some pulse-type applications. The module draws its logic power from the 1769 backplane (typically ≤ 135–200 mA @ 5 V DC) and requires an external 24 V DC field supply connected to the removable screw terminal block. Individual output status LEDs and a module OK/FLT indicator provide at-a-glance diagnostics directly on the front panel. Because the Allen-Bradley 1769-OV16​ is auto-detected and configured through RSLogix 500 / Studio 5000 Logix Designer without DIP switches or manual addressing, it delivers a straightforward, space-efficient solution for adding 16 sinking DC outputs to compact machine-control and process-automation systems where solid-state longevity and fast response are preferred over electromechanical relay outputs.

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Description

 

Technical Specifications

Product Model | 1769-OV16Manufacturer | Allen-Bradley / Rockwell AutomationProduct Type | Compact I/O 24 V DC Sinking (NPN) Transistor Digital Output ModuleNumber of Outputs | 16 points (1 group: Outputs 0–15 share a common terminal)Output Type | Sinking (NPN), solid-state MOSFETOperating Voltage Range | 20.4 … 26.4 V DC (nominal 24 V DC)Current per Output Point (max) | 0.5 A @ 60 °C; 1.0 A @ 30 °CCurrent per Module (max) | 4.0 A @ 60 °C; 8.0 A @ 30 °CSurge Current | 2.0 A for 10 ms, repeatable every 2 sON-State Voltage Drop (max) | 0.5 V DC @ 0.5 A (typ.), 1.0 V DC @ 1.0 AOFF-State Leakage Current (max) | 1.0 mA @ 26.4 V DCOutput Turn-ON Delay (max) | 0.1 msOutput Turn-OFF Delay (max) | 1.0 msBackplane Current Draw | 135 mA typ. @ 5 V DC; 0 mA @ 24 V DC (field supply not drawn by logic)Heat Dissipation (max) | ≈ 2.06 – 3.55 W depending on loadIsolation (Outputs to Backplane) | 1200 V AC for 1 s or 1697 V DC for 1 s; 75 V DC working (IEC Class 2 reinforced)Terminal Type | Removable screw-clamp terminal block (1769-TB3 or 1769-RTBN18)Power Supply Distance Rating | Maximum 8 modules from chassis power supplyOperating Temperature | 0 … +60 °C (+32 … +140 °F)Storage Temperature | -40 … +85 °CHumidity (non-condensing) | 5 % – 95 % RHDimensions (H × W × D) | 118 mm × 35 mm × 87 mm (4.65″ × 1.38″ × 3.43″)Weight | Approx. 0.18 kg (0.4 lb)Mounting | 35 mm DIN rail or panel mount (1769 chassis compatible)Enclosure Rating | IP20 (install inside control cabinet)Certifications | UL Listed, cULus, CE Marked, C-Tick, RoHS Compliant, Class I Div 2 Groups A–D (select revisions)

Main Features and Advantages

Solid-state sinking outputs with fast response: The Allen-Bradley 1769-OV16​ uses N-channel MOSFET transistors rather than mechanical relay contacts, eliminating contact wear, bounce, and arcing. With a 0.1 ms turn-on and 1.0 ms turn-off time, the Allen-Bradley 1769-OV16​ is suitable for applications requiring frequent cycling—such as controlling pneumatic solenoid valves in high-speed packaging equipment—where relay life would be a limiting factor.High-density single-slot design: Occupying just one 1769 slot (35 mm wide), the Allen-Bradley 1769-OV16​ delivers sixteen discrete sinking outputs, making efficient use of limited rack space in CompactLogix L16/L18/L24/L30/L33 systems that typically accommodate only six to eight local 1769 modules. This allows designers to maximize I/O count without expanding to a second chassis or adding remote I/O heads unnecessarily.Reinforced isolation and noise immunity: Optical isolation between the 24 V DC output group(s) and the 5 V backplane logic on the Allen-Bradley 1769-OV16​ is verified to 1200 V AC / 1697 V DC, protecting the CompactLogix processor from voltage transients, ground faults, or inductive kickback on the field side. Proper suppression (flyback diode across DC inductive loads) is still recommended to protect the output transistors themselves.Straightforward wiring and diagnostics: The Allen-Bradley 1769-OV16​ uses a detachable screw terminal block—pre-wire in the panel, then snap it onto the module—with a clearly labeled common (DC COM) and individual output terminals. Front-panel LEDs show module communication health (green OK, red FLT) and individual point activity, allowing maintenance personnel to quickly verify which outputs are commanded ON without a laptop connection. Because the Allen-Bradley 1769-OV16​ is discovered automatically by the Logix controller, no manual node addressing or DIP-switch settings are required—simply add it to the I/O tree in the programming software and assign output data tags.Compatibility note—sinking vs. sourcing: The Allen-Bradley 1769-OV16​ sinks current (NPN style)—the load is connected between +24 V DC and the output point; when the output energizes, the transistor pulls the point to 0 V through the common. This is the complement of the 1769-OB16 sourcing (PNP) module. Ensuring the correct sink/source type match to field-device requirements (e.g., most 24 V DC indicator lights are sink-compatible, while some NPN sensors may require careful consideration) is critical before specifying the Allen-Bradley 1769-OV16.

Application Field

The Allen-Bradley 1769-OV16​ is predominantly used in machine automation and small- to mid-scale process control systems built around the CompactLogix or MicroLogix 1500 platforms wherever 24 V DC sinking-type discrete outputs are required. In packaging machinery—case packers, wrappers, cartoners, and label applicators—the Allen-Bradley 1769-OV16​ drives 24 V DC solenoid valves that actuate pneumatic cylinders for product handling, clamping, and ejection, as well as panel-mounted stack lights and audible buzzers for status annunciation. Material handling systems such as conveyor zones, divert gates, and sortation stations use the Allen-Bradley 1769-OV16​ to energize interposing DC relays that in turn switch larger AC contactors for motor starters, or directly switch low-current DC indicator beacons along the line.In discrete-parts assembly test fixtures, the Allen-Bradley 1769-OV16​ controls clamp-actuate solenoids, part-present reject gates, and pass/fail indicator lamps in multi-station dial-index or linear-transfer machines. Food & beverage bottling and filling lines employ the Allen-Bradley 1769-OV16​ for rinse-nozzle solenoid activation, filler bowl agitation control, and capper head clamp signaling—all within washdown-rated enclosures when properly specified. For water/wastewater pump control panels and small process skids built on CompactLogix hardware, the Allen-Bradley 1769-OV16​ operates local alarm horns, beacon lights, and auxiliary relay coils that trigger larger motor control center (MCC) starter circuits. Because the module is Class I Division 2 approved (certain series/revisions), it can also be installed in appropriately rated enclosures for light hazardous-area auxiliary control such as tank-farm additive pump start permissives or sample-system purge indicators. Wherever long-life, silent, and fast DC load switching is needed and the sinking wiring convention matches the plant standard, the Allen-Bradley 1769-OV16​ is the appropriate choice within the 1769 Compact I/O ecosystem.

Contact Us WhatsApp / Wechat：+86 18150087953
Phone：+86 18150087953
Email：sales@cxplcmro.com

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