Sumitomo Electric Industries, Ltd. JA761017AX Control Card

Sumitomo JA761017AX control card, also cataloged as JA761557AC, is a dedicated control circuit board identified with the RSC86-I and RSC86-1 designations within the Sumitomo control-system family. It is described in vendor listings as a control card used in Sumitomo drive/control configurations and is commonly encountered on the refurbishment and repair market. The part numbers JA761017AX and JA761557AC indicate related variants within the same family, reinforcing its role as a replacement control module for legacy Sumitomo equipment. Buyers typically source JA761017AX/JA761557AC when maintaining or restoring older Sumitomo systems.