The Cincinnati Milacron 3-531-3630A Circuit Board Assembly is a relay interface PC board used in Cincinnati Milacron CNC controls. As a replacement circuit board assembly, it provides the interface between the machine control logic and its relay circuits, enabling proper activation of relays that govern motion, interlocks, and other control signals. Identified by the part number 3-531-3630A (often cataloged as 531-3630A), it is listed among Cincinnati Milacron CNC boards as a relay interface PC board, underscoring its role within Milacron’s control-system ecosystem.
