Product Description:

The E4809-045-084-E belongs to the E4809 CNC Boards series produced by Okuma. This printed circuit board is installed inside machine-tool controls, where it coordinates low-level signals, supervises axis feedback, and routes serial data between the numerical controller and peripheral I/O modules. By integrating discrete logic with analog conditioning on one compact board, it helps maintain deterministic motion control in automated machining cells.

The board has 12 independent circuit paths in its base circuitry, allowing simultaneous process monitoring across multiple functions. A total of 7 edge connectors provide backplane power, sensor inputs, and drive outputs without external adapters. Power distribution uses dedicated rails of +15V/GND/+5V/-15V, so both logic-level and bipolar analog sections can run from one harness. The board has a width of 31.00 cm, along with a height of 6.00 cm and a length of 6.00 cm, which allows it to fit standard Okuma rack slots. Upstream communication is performed over an industrial RS422 serial port, allowing noise-immune differential signaling between the controller cabinet and remotely mounted operator panels.

Overcurrent events are isolated by the onboard fuse marked KM10, while the warning fuse SMP32 can trigger an alarm before a complete shutdown. Switching functions are set through four DIP units, and three variable resistors allow analog fine adjustment without removing the board. Current sampling at the Idu, Idv, Ivc, and Evc test points supports drive diagnostics, and the signal stages rely on the low-saturation transistor type C3346 for consistent switching response. Despite its extended surface area, the assembly weighs 2.000 kg, which helps keep strain on card guides and ribbon cables within acceptable limits in vibration-prone CNC environments.