Product Summary
The 1762‑OW16 is a rugged, 16‑channel relay output module from Rockwell Automation. It expands the I/O capacity of MicroLogix 1100, 1200, and 1400 controllers. This module handles both AC and DC loads efficiently. It provides reliable switching for industrial automation applications. Its design supports easy DIN‑rail or panel mounting.
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Key Technical Specifications
This module delivers sixteen normally open relay outputs. Each channel supports voltages from 5‑265 VAC and 5‑125 VDC. The continuous current rating per point is 2.5 A. The module dissipates only 6.1 Watts of heat. It weighs just 0.63 pounds for easy handling. The compact dimensions are 90 x 40.4 x 87 mm. An IP20 enclosure protects against dust and debris.
Compatibility and System Expansion
The 1762‑OW16 integrates directly with MicroLogix 1100, 1200, and 1400 PLCs. You can install up to four modules with a MicroLogix 1100. With a MicroLogix 1200, you can use up to six modules. The MicroLogix 1400 supports up to seven modules. This flexibility allows you to scale your I/O system precisely. You can match output channels to your process requirements.
Channel Groups and Electrical Isolation
The module divides its 16 outputs into two isolated groups. Group 0 includes outputs 0 through 7. Group 1 contains outputs 8 through 15. Each group provides electrical isolation for better noise immunity. This design protects sensitive controller electronics from load transients. It simplifies wiring by grouping related outputs together.
Current Ratings and Load Management
Each output point handles a continuous current of 2.5 A. The maximum current per common terminal is 8 A. The total continuous current for the whole module reaches 16 A. The maximum controlled load is 1440 VA. These ratings suit motors, solenoids, and lighting loads. They ensure reliable operation under demanding industrial conditions.
Installation and Mounting Options
You can mount this module on a standard DIN rail. It also supports direct panel mounting with screws. The height including mounting tabs is 110 mm. Installation is straightforward and requires minimal tools. Always follow the controller’s specific mounting guidelines. Proper installation ensures long‑term mechanical stability.
Deep‑Dive Technical FAQ
How does the 1762‑OW16 handle inductive loads?
Inductive loads create high inrush currents when switching. The module recommends installing surge suppressors across these loads. This practice protects the relay contacts from damage. It significantly extends the operational lifespan of the module. You should always follow Allen‑Bradley’s wiring guidelines for best results.
What is the signal delay for each output channel?
Each channel exhibits a signal delay of 10 milliseconds. This delay applies to both ON‑to‑OFF and OFF‑to‑ON transitions. The consistent timing ensures predictable system performance. It allows engineers to design precise control sequences. You can rely on this specification for timing‑critical applications.
What are the relay contact ratings for different voltages?
The relay contacts have four distinct voltage ratings. For 240‑120 VAC loads, the maximum current is 2.5 A per point. For 125 VDC loads, the maximum current drops to 2 A. For 24 VDC loads, the maximum current is 1 A per point. Always select the correct rating for your specific load voltage.
How should I protect the module from electrostatic discharge?
Electrostatic discharge can damage the module’s semiconductors. You must handle the 1762‑OW16 at a static‑safe workstation. Wear a grounded wrist strap during installation and maintenance. Avoid touching the circuit board or connector pins. Store the module in its original anti‑static packaging until use.
What are the maximum bus current draws?
The module draws 140 mA from the 5 VDC bus. It also draws 180 mA from the 24 VDC bus. These values are important for power budget calculations. You must ensure your controller’s power supply can support them. Overloading the bus can cause system instability.
