The Allen-Bradley 1746-OV32 provides a high-density output solution for your SLC 500 system. This module controls thirty-two discrete sinking output channels. It delivers a nominal signal voltage of 24VDC. The operating voltage range spans from 5 to 50VDC. This module fits perfectly into any SLC 500 chassis. It occupies just a single slot in the rack. Engineers can use it for local or remote I/O applications. The 1746-OV32 supports high-density, low-current DC output tasks. It also handles high-current applications with ease. This makes it a versatile choice for many control systems. The module offers a step response of 60 ms in and 2.5 ms out.
[Theme A: Product Procurement & Buyer Guide]
This module solves critical industrial pain points for procurement and engineering teams. The 1746-OV32 features two groups of sixteen output channels each. This grouping simplifies wiring and troubleshooting in the field. Each channel provides a continuous current of 0.50A at 30° Celsius. At 60° Celsius, the continuous current derates to 0.25A per channel. The module can handle a surge current of 1.0A for 10 milliseconds. At 30° C, you can repeat this surge every one second. At 60° C, repeat the surge every two seconds instead. The total continuous current per module reaches 8 Amps. This high current capacity suits demanding industrial loads directly.
The module draws only 0.190A from the 5VDC backplane. This low draw leaves power for other modules in the chassis. The isolation voltage from the backplane is 1500VAC for one minute. This isolation protects your control system from ground loops. The module does not include electronic protection on its outputs. You must use external electronic fusing for each output group. This requirement adds a layer of safety for your field devices. The thermal dissipation per channel is just 0.172 Watts. The minimum total dissipation is 0.95 Watts. The maximum total dissipation reaches 6.45 Watts. These values help you calculate your cabinet’s cooling needs accurately.
[Theme B: Step-by-Step User & Installation Guide]
Installing the 1746-OV32 is a straightforward process for any technician. First, ensure the SLC 500 chassis power is completely off. Insert the module into any available slot in the chassis. Use the keying bands to prevent incorrect module insertion. Secure the module with the top and bottom screws. The module uses a 40-pin female connector for field wiring. This connector comes with crimp-type pins for secure wire attachment. Use the default 1746-NC3 wiring connector for standard installations. This method provides a direct and reliable connection to your loads.
For a more flexible wiring solution, use the Allen-Bradley 1492 wiring system. This method utilizes 1492-CABLExx cables and a 1492-IFM40xx terminal block. Mount the 1492 terminal block on a DIN rail near the chassis. This setup allows you to mount external I/O conveniently and easily. Wire your field devices to the terminal block first. Then connect the pre-made cable between the terminal block and the module. This approach simplifies maintenance and module replacement in the future. Always verify your wiring configuration matches a sinking output topology. Apply external fusing to each output group as recommended. Power up the system and test your output signals for correct operation.
