The 1746-FIO4V belongs to the Allen-Bradley SLC500 series. It works as a fast analog combination module. This unit offers two differential analog input channels. You can configure each input for 0-20 mA current or 0-10VDC voltage. Additionally, it provides two voltage output channels with a range of -10 to +10VDC. The input resolution is 12 bits, while the output resolution reaches 14 bits. This module uses a 16-bit two's complement binary communication format. Therefore, it suits both open-loop and closed-loop control applications.
The 1746-FIO4V has an update time of 512 microseconds. Its bandwidth reaches 7 kHz. The step response is 100 milliseconds for inputs and 2.5 milliseconds for outputs at 95%. Overall input accuracy is ±0.440% of full scale at 25°C. Meanwhile, output accuracy reaches ±0.298% of full scale at the same temperature. The backplane draws 55 mA at 5V DC and 150 mA at 24V DC. Field wiring to backplane isolation equals 500V DC.
For input protection, the 1746-FIO4V handles up to ±7.5V DC or 7.5V AC RMS. Its maximum input current is 30 mA. The input signal range is 0-20 mA nominal or 0-30 mA maximum. For voltage input configuration, the range is 0-10V DC. You can also configure standard signals like 0-5V DC, 1-5V DC, or 0-10V DC. The output range is -10 to +10V DC minus 1 LSB. Furthermore, outputs support standard voltage signals including 0-5V, 1-5V, 0-10V, and -10 to +10V.
The 1746-FIO4V fits into a single SLC500 chassis slot. It uses an open-type enclosure. Ambient humidity should stay between 5% and 95% non-condensing. The recommended wire size is 2.5 mm² (14 AWG). Operating temperature ranges from 0°C to 60°C (32°F to 140°F). This module also includes an LED status indicator for quick diagnostics.
First, confirm the 1746-FIO4V works with your SLC500 controller. It fits both fixed and modular chassis styles. Next, select a slot away from AC voltage sources or high-level DC voltage. Avoid placing it next to the rack power supply. Then, insert the module and tighten the retaining screws. For wiring, strip wires to 6-7 mm. Connect each signal to the correct terminal. Specifically, use shielded cable to reduce electrical noise. Finally, ground the shield only at the module end.
1. Can the 1746-FIO4V accept 4-20 mA signals?
Yes, you can configure each input channel for 4-20 mA as a standard signal. The nominal range remains 0-20 mA.
2. What is the difference between 1746-FIO4V and 1746-FIO4I?
The 1746-FIO4V provides voltage outputs (-10 to +10V DC), while the 1746-FIO4I provides current outputs (0-20 mA). Both share the same input specifications.
3. Does the 1746-FIO4V support chaotic output signals?
Yes, the output channels support -10 to +10V DC. You can also configure them for unipolar ranges like 0-5V or 0-10V.
4. How do I minimize noise when wiring the 1746-FIO4V?
Use shielded cable such as Belden #8761. Keep wiring away from AC power lines. Ground the shield only at the module end.
5. Is the 1746-FIO4V compatible with 1747-L20 fixed controllers?
Yes, it works with fixed style controllers including 1747-L20, L30, and L40 when used in an expansion I/O rack.
| Brand Name | Allen-Bradley |
| Model No. | 1746-FIO4V |
| Product Type | Analog Combination Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
