E4809-045-148-D Okuma
Wake Industrial LLC is not an authorized distributor of this product.
MPN: 1911-2101-0638006
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The Okuma E4809-045-148-D is a Main Board 2 from the E4809 CNC Boards series. It features a MC68020RP25E CPU and operates at a clock frequency of 40 MHz. The board uses a HAT-HB clock oscillator and includes a memory IC model HG62F22R83FH, with its board number set by switch settings.
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Product Description:
The E4809-045-148-D control assembly is produced by Okuma within the E4809 CNC Boards series. It serves as a main logic module inside OSP-based machine tools, forming the processing layer that executes motion calculations, I/O handling, and program sequencing in industrial automation cells. The board plugs into the primary backplane of the control enclosure and interfaces with peripheral axis, spindle, and operator panels through dedicated bus connectors. Its hardware resources support deterministic cycle times required for contouring and toolpath execution.
At the core of the board, a MC68020RP25E 32-bit microprocessor handles arithmetic, logic, and supervisory tasks. This CPU is driven by a 40.00000 MHz crystal so instruction fetch and peripheral timing occur at a predictable rate suited to real-time motion control. Frequency stability is provided by the HAT-HB clock oscillator, and its reference identification is marked as KDK 9412 for component identification. Program code and operational data are stored in a HG62F22R83FH static memory IC, giving nonvolatile retention of ladder logic, parameters, and stored system data even when machine power is removed. The board has no indication LEDs, so status reporting is handled through system diagnostics.
As the control rack assigns slots by hardware code, the board carries the designation Main Board 2, and its role is marked as Main CPU so it is installed in the correct address space. The numeric identity of the assembly is set through SW1, a DIP array with 4 positions, before power-up so the backplane can recognize the module without software intervention. No SBP ROM is installed, so bootstrap code is supplied by external devices during the initial load process. Because the board has no on-board LEDs, startup checks are performed through host diagnostics.
Frequently Asked Questions about E4809-045-148-D:
Q: What type of CPU is installed on the E4809-045-148-D main board?
A: The E4809-045-148-D uses an MC68020RP25E CPU as its main processor.
Q: What is the clock frequency for the E4809-045-148-D board?
A: The clock frequency on this board is set to 40.00000 MHz.
Q: How is the board number set for the E4809-045-148-D main board?
A: Board numbering for the E4809-045-148-D is determined by a switch setting.
Q: Are indication LEDs present on the E4809-045-148-D board?
A: This board does not include any indication LEDs.
Q: How many switch positions are available on the E4809-045-148-D and which switch is used?
A: There are four switch positions available, operated by switch SW1.
