E4809-820-016-A
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The E4809-820-016-A is a main backplane board designed for rack mount or in-chassis configurations. Manufactured by Okuma as part of their E4809 CNC Boards series, it features a backplane form factor and multiple edge connectors. Constructed from FR4 PCB laminate, it operates within a temperature range of 0°C to 60°C.
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Product Description:
The E4809-820-016-A CNC Board is the development of Okuma. The board can function very well in performing industrial automation tasks and it ensures highly efficient and precise operation.
The E4809-820-016-A CNC board features hole resistors and ceramic capacitors that are spread throughout for signal filtering and voltage regulation which indicates robust power management and signal conditioning. It comes with four corner mounting holes with possible chassis grounding which ensures stable mechanical fixation and provides electrical grounding to the machine frame that is critical for safety and noise immunity. It can handle substantial power with the help of 3 black capacitors which smooth high voltage DC rails for motor drivers or power circuits. It also has an additional connector for signal or control which allows it to interface with external systems possibly PLCs, motor drivers or feedback sensors which makes it a communication hub in a CNC system. The board has a standard industrial finish that aids visibility for service, repair and manufacturing. It comes with a single sided component layout which simplifies maintenance and reduces production cost. The presence of semiconductors such as transistors and diodes shows active control or protection functions such as switching, regulation or circuit safeguarding.
The E4809 CNC Boards series includes 6 relays that are used to switch high power or safety critical circuits on and off and could control spindle motors, coolant systems or alarms. It has a plug in type modular design with edge connectors which enables flexibility and makes it easy to swap or reconfigure specific functions such as I/O expansion, encoder input or feedback processing. It is a moderately large board footprint with a size of 300 mm x 150 mm.
Frequently Asked Questions about E4809-820-016-A:
Q: Why are large capacitors used in the E4809-820-016-A CNC board?
A: They store and stabilize high-voltage DC power for motor drivers. This reduces voltage ripple and ensures smoother CNC motor operation.
Q: How do the edge connectors improve functionality in the E4809-820-016-A CNC board?
A: Edge connectors allow easy module swapping and expandability. This supports quick reconfiguration without full disassembly during maintenance or upgrades.
Q: What benefit does a single-sided component layout provide?
A: It simplifies inspection and repair by keeping all components on one side. This design also reduces manufacturing complexity and cost.
Q: Why are multiple relays included in the E4809-820-016-A board?
A: Relays control high-power loads safely through low-power logic signals. This isolates critical systems like spindles or alarms from the control circuitry.
Q: How does the board’s mounting design enhance reliability in CNC machines?
A: Corner mounting with chassis grounding ensures firm installation. It reduces vibration effects and adds protection from electrical noise.
