Yaskawa Electric Corporation JARCR-XFB04 Circuit Board

The Yaskawa JARCR-XFB04 control board is a rack‑mounted servo control interface and CC-Link network communications PCB for Yaskawa Motoman XRC controllers. Manufactured by Yaskawa Electric Corporation, this module functions as the servo control interface and CC-Link slave for networked automation systems, enabling communication between the controller and external devices while coordinating servo operations. In a typical Motoman XRC setup it installs inside the controller rack alongside CPU, I/O, and servo modules to support coordinated machine and robot operation. Key details include a weight in the ~1 lb class and its status as an obsolete / legacy component commonly found as used or refurbished parts. Applications span industrial robots (Motoman), CNC machines, and automated production systems requiring servo coordination and network communication. Compatibility is limited to Yaskawa Motoman XRC controllers, and installation is controller rack‑mounted. Common replacements listed for context include Yaskawa SARCR-XFB01, Yaskawa JARCR-XFB01B‑2 Expansion Board, and Yaskawa JARCR-XEB01‑2 Expansion Rack.