E4809-032-452-D Okuma
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MPN: 1911-1120-1241003
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The Okuma E4809-032-452-D is an Input/Output EC Board from the E4809 CNC Boards series, designed for use in lathes and grinders. It features 72 inputs sourced from limit switches and 40 outputs for controlling devices like solenoids, lamps, and relays. The board is equipped with three front connectors and supports up to six EC boards per system.
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Product Description:
The E4809-032-452-D Input/Output EC board is manufactured by Okuma as a member of the E4809 CNC Boards series. This printed-circuit assembly occupies one slot in an Okuma control cabinet and serves as the electrical bridge between field devices and the numerical control backplane. Within an automation cell, it collects dry-contact information from machine sensors and energizes peripheral circuits, letting the lathe or grinder control program respond to real-world positions and issue on and off commands without additional interface modules.
The board accepts 72 inputs, so a single card can monitor all standard limit and interlock points on a midsize machine. Each channel is mapped to an address range of E0 to E5, allowing the CNC kernel to poll status through deterministic memory locations. Output capability extends to 40 outputs, and each sinking terminal can switch enough current for pilot devices that meet Okuma’s low-power requirement. Hardware interaction is organized through 3 front connectors labeled CN-E0-2, CN-E0-3, and CN-E0-4, which keeps field wiring grouped at the front edge of the card. Data and power handshaking with the controller occur over the MB-IIB backplane, removing the need for an onboard CPU while still allowing interrupt-driven response times.
A machine builder can install up to 6 boards per system, scaling the discrete I/O capacity without rewiring the main processor rack. The sinking outputs are wired directly to solenoids, lamps, and relays, so external amplifiers are unnecessary when operating common valve coils or panel lights. Input circuits are designed around dry contacts from limit switches, providing galvanic isolation from motor power and minimizing electrical noise on encoder lines. Mechanical compatibility matches Okuma enclosure dimensions for lathes and grinders, so the board fits standard cabinet layouts used on those machine types.
Frequently Asked Questions about E4809-032-452-D:
Q: How many EC boards can be used with the E4809-032-452-D?
A: The E4809-032-452-D supports up to six EC boards in a single installation.
Q: How many input channels are available on the E4809-032-452-D board?
A: This board provides 72 input channels, suitable for monitoring signals such as limit switches.
Q: What is the output capacity of the E4809-032-452-D board?
A: There are 40 output channels on this model, designed for controlling devices like solenoids, lamps, and relays.
Q: What is the main interface of the E4809-032-452-D board?
A: The main interface used by the E4809-032-452-D is the MB-IIB connection.
Q: What machine types can the E4809-032-452-D board be used with?
A: This board is compatible with both lathes and grinders, meeting the needs of those machine types.
