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The 1746-OV32 is a high-density SLC 500 digital output module providing 32 channels of 24V DC current sinking outputs. It is designed for space-critical applications, utilizing a 40-pin telecommunication-style connector to interface with field devices through two groups of 16 points.
High-Density Output
Fast Response Time
Broad Voltage Range
This module supports a wide operating voltage range of 5 to 50V DC and features rapid signal response times with a maximum "off-to-on" delay of 0.1 ms. Its high-density design significantly reduces backplane slot requirements while maintaining robust thermal performance with a total module current capacity of 8.0A at 30°C.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Allen-Bradley 1746-OV32 Current Sinking DC Output Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Automotive Manufacturing
Used for controlling high-density solenoid valves and small DC relays in assembly line automation. The 32-point high-density design minimizes chassis space while providing 0.1 ms rapid signal response for high-speed synchronization.
Food and Beverage
Applied in high-speed bottling and packaging machinery to drive DC actuators. The module operates within a broad 5 to 50V DC range, allowing it to interface with various sensory and control devices in wash-down environments.
Material Handling
Implemented in automated storage and retrieval systems (AS/RS) for coordinating conveyor sorters. It provides a total module current capacity of 8.0A at 30°C, ensuring reliable operation for multiple simultaneous load switching.
Pharmaceutical Packaging
Utilized in precision labeling and blister pack machines requiring discrete 24V DC control. The use of a 40-pin telecommunication-style connector facilitates organized wiring for complex, high-density I/O configurations.
Water Management
Deployed in pumping stations and filtration control panels for managing chemical feed pumps. Its 24V DC sinking output configuration is ideal for interfacing with standard industrial sensors and low-power DC pilot lights.
Textile Production
Used in automated weaving and knitting machines to control high-frequency electromechanical components. The module features optical isolation between the logic-side and user-side to protect the SLC processor from field-side electrical noise.
RTD Lead Wire Compensation：For 3-wire RTD configurations, the module automatically compensates for lead wire resistance, provided all three leads are of equal length and material. To maintain high accuracy, lead wire resistance should not exceed 25 ohms for any single wire.
Wiring and Shielding Practices：To reduce the effect of electromagnetic interference (EMI), use shielded twisted-pair cable for all RTD or resistance inputs. The shield should be grounded at only one end, preferably at the SLC chassis ground, to prevent ground loops.
Open-Circuit and Short-Circuit Detection：The 1746-NR4 performs continuous diagnostics for open-circuit (upscale or downscale) and short-circuit conditions. If a sensor failure is detected, the module sets the corresponding bit in the channel status word, which can be monitored by the SLC processor to trigger safety routines.
What is the operating voltage range for the Allen-Bradley 1746-OV32 module?
The 1746-OV32 operates within a voltage range of 5 to 50V DC (Sink), with a nominal supply voltage of 24V DC.
What is the maximum output current per point and per module for the 1746-OV32?
The maximum output current per point is 0.5A at 30°C (derated to 0.25A at 60°C), with a maximum total current of 8.0A per module.
What is the maximum signal delay time for the 1746-OV32 during switching?
The maximum signal delay for the 1746-OV32 is 0.1 ms for "off-to-on" transitions and 1.0 ms for "on-to-off" transitions.
How many common terminals are provided on the 1746-OV32 module for its 32 points?
The 1746-OV32 module consists of 32 output points organized into two groups of 16 points, with each group having its own common terminal .
What is the backplane current draw for the 1746-OV32 module at 5V DC?
The 1746-OV32 draws a maximum current of 190 mA from the 5V DC SLC backplane; it does not draw current from the 24V DC backplane.
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