This page showcases the OTC DAIHEN L9742E01 system card, a genuine control board used in FD series robots. System cards contain the robot's operating software and are specific to the robot model. Common system card models include L9742E01, L22276E00, and L21700E00. Below you will find photos, ordering options (including trade‑in), and specifications.



The L9742E01 is a system card (CPU/memory board) used in OTC DAIHEN FD series robots. It contains the robot's operating system and application software. Other common system card models for different OTC robot series include L22276E00 and L21700E00. To ensure compatibility, select the card that matches your robot model, or compare with the photos of your original card.
OTC DAIHEN offers a trade‑in program for system cards: you can send us a defective card of the same model, and we will provide a remanufactured (tested, fully functional) card in return at a reduced cost. If you prefer a brand‑new, factory‑sealed card, that is also available at a higher price. Please contact us with your requirements.
Part Number: L9742E01
Description: Robot system card (CPU board)
Applicable Robots: OTC DAIHEN FD series (confirm compatibility with your model)
Related Models: L22276E00, L21700E00 (for other robot series)
Options: Trade‑in (exchange defective card) or brand‑new purchase
Origin: Japan – genuine OTC DAIHEN production
Using authentic OTC DAIHEN L9742E01 system cards ensures correct firmware, reliable operation, and exact form‑fit‑function. Non‑OEM cards may cause system errors or incompatibility. As an authorized OTC DAIHEN distributor, we supply only 100% original or properly remanufactured parts under the trade‑in program.
We offer a full range of OTC DAIHEN equipment, original spare parts, and consumables. Contact us for controllers, system cards, cables, and more.
For pricing, trade‑in options, stock availability, or technical inquiries regarding the OTC DAIHEN L9742E01 system card, please contact us.
Phone / WhatsApp: +86-180-9663-1656
Email: ahojotc@gmail.com (preferred for detailed inquiries)
You are also welcome to connect on WhatsApp for technical discussions and knowledge sharing about OTC DAIHEN welding machines and robotic systems.
* For fastest response, please email ahojotc@gmail.com directly. Thank you.
Company: COMPANY:Authorized Distributor of OTC Daihen
Contact person: Contact:Mr.Fang
Mobile phone: Phone:+86-18096631656
Email address: Email:15305667776@163.com
Address: Add:Room 11-704, K Xijia, No. 502, Wangjiang West Road, Hefei, Anhui, China