The Okuma E4809-770-127 is a spindle side plate control PCB (often labeled ICB3F or 1006-2112) for Okuma VAC series spindle drives and MIV-3-V spindle inverters (e.g., MIV06-3-V3). It manages spindle interface signals, power monitoring, fault detection, and auxiliary control functions within the drive unit. Part of the E4809 VAC control board family with CN connectors for motor/control wiring. Plug-in or side-mounted design ensures reliable spindle operation in precision CNC machining. Discontinued by manufacturer. [stock available]