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Description
The Allen-Bradley 1746-OB32 is a high-density digital output module designed for the SLC 500 programmable logic controller (PLC) platform. This module provides 32 points of transistor source output, making it an efficient solution for controlling a wide range of DC-operated industrial devices such as solenoids, contactors, and indicators. Engineered for reliability in demanding automation environments, the 1746-OB32 integrates seamlessly into the SLC 500 chassis, offering robust performance for complex control applications.
Features
- 32-point transistor source output configuration.
- Wide operating voltage range of 5-50 VDC.
- Two groups of 16 outputs per common for flexible wiring.
- Low backplane power consumption of 190 mA at 5 VDC.
- Compact open-style enclosure for standard SLC 500 rack mounting.
Applications
This module is widely utilized in manufacturing and process control systems where high-density DC output switching is required. Typical applications include machine tool control, assembly line automation, packaging equipment, and material handling systems that rely on the SLC 500 architecture.
Technical Specifications
| Model |
1746-OB32 |
| Number of Outputs |
32 |
| Output Type |
Transistor Source |
| Voltage Range |
5-50 VDC |
| Current per Point |
0.25 A to 0.5 A (depending on voltage) |
| Current per Module |
8 A |
| Points per Common |
16 |
| Backplane Current (5V) |
190 mA |
Installation Guidelines
- Ensure the PLC chassis power is disconnected before installing or removing the module to prevent electrical damage.
- Slide the module into the desired slot of the SLC 500 chassis and secure it using the integrated mounting screws.
- Use appropriate shielded cabling for output signals to minimize electromagnetic interference (EMI).
- Ensure proper grounding of the chassis to a common earth point to maintain signal integrity.
- Maintain adequate ventilation around the chassis to prevent overheating during continuous operation.
FAQ
What is the output type of this module?
The 1746-OB32 is a transistor source output module, meaning it provides a positive voltage signal to the connected load.
How many points are there per common?
The module features 32 points total, organized into two groups of 16 points per common.
