E4809-045-109-C Okuma
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The Okuma E4809-045-109-C is a Master Axis Board from the E4809 CNC Boards series. It provides control for 2 axes, supporting axis speed and position with absolute position feedback. The board features 1 channel for pulse generation and pulse handle, includes 6 sensor inputs, and supports brushless servo motors.
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Product Description:
The E4809-045-109-C is a control printed-circuit board manufactured by Okuma for the E4809 CNC Boards series. Classified as a master axis module, it plugs into the OSP numerical control chassis and communicates with drive amplifiers over dedicated backplane connectors. The board’s role is to calculate velocity and position commands in real time so that tool slides, rotary tables, or auxiliary axes follow programmed trajectories within the required machining tolerances. It forms the link between high-level part programs and the low-level servo currents that move the machine.
In executing this task, the board closes axis speed and position control loops for 2 servo channels and distributes synchronization pulses to any secondary motion cards installed in the same rack. Position feedback is accepted through an absolute position encoder interface, allowing the machine to retain coordinate data after power loss or emergency stop events. Command, error, and status words are passed over the differential RAPA/RCON/RDIFF bus to suppress electromagnetic interference from spindle drives and coolant pumps. Because the module is the designated master axis board, it generates the global interpolation clock, and up to three SPC1 daughter cards can be mounted locally to extend discrete input or relay output reach for peripheral devices such as coolant valves or part clamp sensors.
The operator interface includes a dedicated single-channel pulse generator that accepts electronic handwheel or test-signal inputs for incremental jog moves. A separate single-channel pulse handle line provides manual feedrate override without disturbing the main interpolation cycle. Feedback from limit, home, and safety switches is collected through 6 sensor inputs mapped directly into the real-time loop. When the machine configuration demands expanded motion capacity, the board still supervises trajectory data for 10 coordinated axes, provided every drive is a brushless servo model so that current regulation characteristics stay consistent across the installation.
Frequently Asked Questions about E4809-045-109-C:
Q: How many axes can the E4809-045-109-C board control?
A: The E4809-045-109-C is designed to control two axes per board.
Q: What type of encoder feedback does the E4809-045-109-C board accept?
A: This board is equipped to process feedback from absolute position encoders.
Q: How many sensor inputs are available on the E4809-045-109-C board?
A: The E4809-045-109-C supports up to 6 sensor inputs for enhanced machine monitoring.
Q: What is the primary control function of the E4809-045-109-C?
A: This board controls axis speed and position as its main control function.
Q: What type of servo motors are supported by the E4809-045-109-C board?
A: The E4809-045-109-C is compatible with brushless servo motors.
