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Product Description
The Allen Bradley 1746-IO4 Digital Combination I/O Module features 2 inputs and 2 relay contact outputs, operating with 120VAC input power and 100-120VAC output power. Input voltage ranges from 85-132VAC (47-63Hz), while output voltage ranges from 5-265VAC (47-63Hz) or 5-125VDC, with a continuous current of 4A. Backplane current consumption is .030mA at 5VDC and .025mA at 24VDC. It operates between -25 and 60C, withstands non-operating temperatures of -40 to 85C, and tolerates 5-95% relative humidity (non-condensing). Vibration displacement peaks at 0.015 inches (5-57Hz) and operating shock is 10g. The module includes a self-lifting terminal block accepting two 14 AWG cables and front-mounted LEDs indicating input status, requiring separate routing of input power from the I/O device cable.
Is Your Device Showing These Signs?
The Allen Bradley 1746-IO4 I/O module commonly experiences issues such as corrupted firmware requiring a reflash, backplane communication failures due to damaged pins or faulty connections, and I/O point failures stemming from overvoltage or short circuits on the input channels. Troubleshooting involves verifying power supply voltage, inspecting the backplane connector for damage, and using a multimeter to test input signal integrity. Module replacement is necessary when internal component failure is confirmed. Proper grounding and surge suppression are crucial for preventing future damage.
Technical specifications
The Allen Bradley 1746-IO4 is a digital combination I/O module with 2 inputs and 2 relay contact outputs. It uses 120VAC input power and provides 100-120VAC output power, with specified voltage and frequency ranges for both. It has low backplane current consumption, a wide operating temperature range, and is resistant to humidity, vibration, and shock. It features a self-lifting terminal block and front-mounted LEDs for input status indication, requiring separate input power routing.
Our Repair Process for the
1746-IO4
Our repair process for the Allen Bradley 1746-IO4 I/O module begins with a thorough verification of the power supply voltage and a meticulous inspection of the backplane connector for any physical damage. We then use a multimeter to rigorously test the input signal integrity, pinpointing any I/O point failures resulting from overvoltage or short circuits. If corrupted firmware is suspected, a reflash is performed. Upon confirmation of internal component failure, the module is immediately replaced. To prevent future damage, proper grounding and surge suppression measures are implemented.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
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Ships from Rochester, NY