The Allen-Bradley 1794-OF4I is a FLEX I/O analog module distinguished by its four isolated analog outputs, compatible with various terminal base units including 1794-TBT and 1794-TB3. Designed for seamless integration, it can be conveniently mounted on a DIN rail or a panel, offering an open enclosure with dimensions of 3.7 x 2.6 x 3.7 inches. Supporting an external DC voltage range of 19.2 to 31.2 volts, and powered by an external DC power supply current of 210 mA at 24 volts, this module allows user-configurable output currents ranging from 4 to 20 mA and 0 to 20 mA, as well as output voltages like ±10 volts and 0 to 10 volts. With a digital-to-analog conversion resolution of 15 bits plus sign, an update rate of 2.5 to 5 milliseconds across all channels, and exceptional accuracy ratings, the 1794-OF4I is an optimal choice for robust and precise industrial automation applications.
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Technical specifications for 1794-OF4I
| Manufacturer | Rockwell Automation |
|---|---|
| Update Rate | 2.5/5.0 ms all channels |
| Conversion Type | Digital to Analog Converter |
| Resolution | 15 bits plus sign |
| Part Number/Catalog No. | 1794-OF4I |
| Brand | Allen-Bradley |
| Product Description: | Flex IO High Output Module |
| No. of outputs: | Four (4) Isolated |
| Output type: | 4-20 mA, 0-20 mA and ±10VDC; 0-10VDC; +/- 5VDC and 0-5VDC |
| Voltage Resolution | 0.320 mV/cnt |
| Current resolution | 0.656 mA/cnt |
| Step response to 63% of full scale | < 25 ïs |
| Terminal base: | 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794- TB3TS, 1794-TBN |
| External DC supply, nom: | 24V DC |
| External DC supply range: | 19.2…31.2V DC (includes 5% AC ripple) |
| Mounting: | DIN Rail |
| Operating Temperature: | 0 to 55 C (32 to 131 F) |
| Storage Temperature: | –40…85 °C (–40…185 °F) |
| Vibration: | 5g @ 10 to 500 Hz |
| Operating Shock: | 30 g |
| Product Type | Flex I/O Isolated Output Analog Module |
| Outputs | 4 Isolated |
| Current Load on Voltage Output | 3mA max. |
| FlexBus Current | 50mA |
| Isolation Voltage | 120V Continuous |
| Output Current Terminal | 4-20mA |
| Output Voltage Terminal | +/- 10V |
| Thermal Dissipation | 16 BTU/hr. @ 31.2V DC max. |
| UPC | 10612598171580 |
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