E4809-045-174-A Okuma
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MPN: 1911-2241-0449105
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The Okuma E4809-045-174-A is part of the E4809 CNC Boards series and uses FieldNet as its network type with fiber optic communication. It features 32 input channels with 24 VDC supplied through photocouplers and 32 output channels, each capable of 2 Amps at 24 VDC using Power MOS IC technology. The board operates with a 40 MHz oscillator frequency and utilizes a 3M No.3428 ribbon connector.
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Product Description:
The E4809-045-174-A is an Okuma input/output board that belongs to the E4809 CNC Boards series. Installed inside the control rack of an Okuma machining center or lathe, the board forms the electrical interface between digital CNC logic and peripheral sensors or actuators. It passes status changes and control commands between the CNC and external devices so machine functions can respond quickly during automatic cycles. By translating optical network traffic into discrete field signals, it enables fast communication without adding a separate gateway board.
An onboard transceiver operates over a Fiber Optic link, and the board appears on the shop-floor backbone as a FieldNet node, a topology that helps avoid electromagnetic interference commonly found near high-power spindles. Internal timing is governed by a crystal that oscillates at 40.00000 MHz, which supports deterministic scan cycles for both input sampling and output refresh. All incoming signals are referenced to 24 VDC, and the backplane allocates 4 Bytes of address space to the input register so the PLC can read the full state in a single transaction. This arrangement is suitable for tool-change arms, hydraulic clamps, and limit monitoring tasks.
The XB2 terminal accepts up to 32 Points of discrete status information, and each channel is isolated from the logic core by a Photocoupler that blocks ground loops and voltage transients. Command signals leave the board through ribbon header 3M No.3428 and plug-in blocks XB3 to XB6. Switching is handled by a Power MOS IC array that can source or sink up to 2 A/Bit for solenoid valves, relays, or indicator lamps. Separate load-supply power pins keep the output supply isolated from the logic rails. This layout allows one board to handle both signal transfer and direct load switching within the CNC I/O section.
Frequently Asked Questions about E4809-045-174-A:
Q: What communication medium does the E4809-045-174-A CNC board use?
A: The E4809-045-174-A CNC board supports fiber optic as its communication medium.
Q: How many input points are available on the E4809-045-174-A board?
A: It provides 32 input points for various digital signals.
Q: What is the output voltage for each channel on the E4809-045-174-A?
A: This board delivers an output voltage of 24 VDC per channel.
Q: What input device type is used on the E4809-045-174-A board?
A: The input device type used is a photocoupler, providing isolation for incoming signals.
Q: What is the oscillator frequency of the E4809-045-174-A CNC board?
A: Its oscillator runs at a frequency of 40.00000 MHz.
