Get now: Allen-Bradley 1769-OB32 Compact High-Density Output Module
Atlantechdrives provides you the 1769-OB32, a high-density digital sourcing output module designed to maximize the I/O capacity of your CompactLogix or MicroLogix 1500 system. This module is essential for large-scale automation projects where control cabinet space is limited, providing 32 discrete 24V DC outputs in a single 35mm expansion slot.
- Outputs: 32 Sourcing (PNP) Digital Outputs
- Voltage: 24V DC nominal (20.4V to 26.4V range)
- Connection: High-density 40-pin connector
- Isolation: 30V continuous (reinforced insulation)
- Current Rating: 0.5A per point (max 4.0A per group)
- Backplane Current: 300 mA @ 5.1V
Technical Architecture: Maximizing Panel Space with High-Density Logic
Purchase now the 1769-OB32 to optimize your hardware footprint. This module is engineered to drive small DC loads, solenoids, and indicators across 32 independent channels. By doubling the density of standard 16-point modules, the 1769-OB32 allows engineers to build complex machines with significantly shorter DIN rail lengths. The module is divided into two isolated groups of 16 points each, allowing for flexible wiring of different power branches. Each output utilizes solid-state sourcing transistors, ensuring silent operation and an exceptional mechanical lifespan compared to relay modules. When you secure the 1769-OB32, you are choosing an industrial-grade solution that provides high-speed switching capabilities and superior heat dissipation for high-density environments.
Expert Tips: Wiring High-Density Connectors
When installing the 1769-OB32, the primary technical challenge is the high-density wiring. Unlike screw-terminal modules, the OB32 requires a 40-pin cable and a pre-wired terminal block (Interface Module like the 1492 series). To ensure signal integrity and prevent accidental shorts, we recommend using factory-molded cables rather than hand-crimping. Always calculate the total module current; even if each point can handle 0.5A, the total current for the 32 points must not exceed the thermal limits of the backplane. Sourcing your 1769-OB32 from Atlantechdrives ensures you receive a unit with pristine connector pins, essential for maintaining low-resistance data and power flow.
Maintenance and Thermal Management
The 1769-OB32 generates more heat than lower-density modules due to its 32 active transistors. Maintenance protocols should include checking cabinet ventilation and ensuring that the module is mounted with the recommended 2-inch clearance. Use the 32 amber status LEDs on the front panel to monitor output activity; if a group of 16 fails simultaneously, check the external fuse for that specific common (VDC+). Sourcing from Atlantechdrives provides the reliability of original Rockwell Automation components, protecting your system from the thermal failure common in non-original high-density cards.
FAQs
Q: Is the 1769-OB32 a Sinking or Sourcing module?
A: It is a Sourcing (PNP) module, meaning it provides 24V DC (+) to the load.
Q: Does it include the terminal block?
A: No, the OB32 requires a separate 40-pin cable and an external terminal base for wiring.
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