Product Description
The Omron CS1W-ID291Q1, a CS1 series digital input module, offers flexible integration with the CS I/O bus, handling up to 96 PNP/NPN inputs at 24 VDC. Featuring a rectangular connector for easy setup and backplane mounting for space efficiency, it operates reliably between 0C and 55C, complies with RoHS standards, and requires a 5 mA signal current per input.
Is Your Device Showing These Signs?
The Omron CS1W-ID291Q1 discrete input module commonly experiences failures due to blown input fuses from overvoltage events or incorrect wiring. Technicians address issues such as signal noise interference causing false positives, resolved by implementing proper grounding and shielded cabling. Corrosion on terminal blocks leads to intermittent connections, necessitating terminal cleaning or module replacement. Software configuration errors in the PLC program prevent proper input recognition, requiring code verification and parameter adjustments. Finally, component degradation from thermal stress or age results in complete module failure, mandating a replacement.
Technical specifications
Omron CS1W-ID291Q1: 96-input digital module (PNP/NPN, 24 VDC), CS I/O bus, rectangular connector, backplane mounting, 0-55C, RoHS compliant, 5 mA/input.
Our Repair Process for the
CS1W-ID291Q1
Our repair process for the Omron CS1W-ID291Q1 discrete input module begins with a thorough inspection for blown input fuses, a common failure point due to overvoltage or wiring errors; technicians replace any faulty fuses. Next, we address signal noise interference by implementing proper grounding techniques and installing shielded cabling to eliminate false positives. Corrosion on terminal blocks is resolved through meticulous cleaning or complete module replacement if necessary to ensure secure connections. Software configurations are verified and adjusted within the PLC program to guarantee accurate input recognition. In cases of complete module failure resulting from component degradation, the module is replaced with a new or refurbished unit.
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.

















