The FANUC A02B-0303-C231 is a Main Panel Machine Operator’s Panel used in compatible FANUC Series 30i, 31i and 32i Model A CNC configurations. It provides the physical push-button interface for machine functions assigned by the machine-tool builder.

The panel is part of a modular operator station. Key assignments and indicator functions depend on the key layout, connection hardware, PMC ladder, wiring and original machine configuration.

• 100% key and indicator functions tested before shipment
• Worldwide DHL, UPS and FedEx shipping
• Testing video provided upon request

Product Details

Brand: FANUC
Part Number: A02B-0303-C231
Alternative Format: A02B0303C231
Official Product Type: Main Panel Machine Operator’s Panel
Common Search Names: FANUC Operator Panel, Operator Keypad, Machine Control Keyboard, Operator Interface Panel
Panel Role: Main Panel in a Modular Machine Operator Station
Product Series: A02B-0303
Documented CNC Families: Selected Series 30i/31i/32i Model A configurations
Related Open CNC Families: Selected 300i/310i/320i configurations
Availability: Contact us for current availability
Core Exchange: Not accepted at this time
Repair Service: Not offered at this time
Testing: Keys, applicable indicators and interface functions checked in a compatible FANUC configuration

Operator Panel Function

The A02B-0303-C231 converts physical key operation into signals used by the machine control. Depending on the machine design, its buttons can be assigned to operating modes, cycle commands, manual movement or other builder-specific functions.

Key labels alone do not guarantee the programmed function. The machine builder’s PMC ladder and wiring determine how each input and indicator is used. A replacement should match the original number, key arrangement and connection configuration.

Documented Panel Structure

FANUC Model A documentation lists this panel with related components including:

• A02B-0236-C232: Machine Operator’s Sub Panel A
• A02B-0236-C244: Machine Operator’s Sub Panel D
• A16B-2202-0731: Connector Unit, source output A, DI/DO 64/32
• A16B-2202-0730: Connector Unit, source output B, DI/DO 96/64

These are separate system components and are not automatically included with the A02B-0303-C231. The required connector unit and sub-panel arrangement depend on the machine.

Product Classification

Search results may call the A02B-0303-C231 a keypad, keyboard or HMI panel. Its documented classification is a FANUC Machine Operator’s Panel Main Panel.

It is not a complete CNC control, LCD display, touch screen, MDI unit, PLC, motherboard or standalone programmable HMI. It supplies a physical machine-operation interface and requires the correct control hardware and PMC configuration.

Model and Compatibility Clarification

The A02B-0303-C231 is documented for selected Series 30i/31i/32i Model A hardware. It should not be confused with A02B-0323-C231, a separately specified operator panel appearing in Model B documentation.

Similar numbers or appearance do not prove interchangeability. Before ordering, verify:

• Complete number A02B-0303-C231
• Panel revision and secondary labels
• Internal PCB number, if shown
• CNC series and complete system number
• Machine manufacturer and model
• Main-panel and sub-panel arrangement
• Operator-panel connector-unit number
• Connector, wiring and mounting layout
• Key symbols and indicator arrangement
• PMC ladder and machine assignments

Photographs of the front, rear, labels and connectors are recommended.

Replacement Note

Replacement may be appropriate for confirmed non-responsive keys, intermittent inputs, failed indicators, damaged key surfaces or connector damage. Similar faults can originate from the connector unit, cable, power supply, PMC ladder or machine wiring, so diagnosis is recommended first.

Sales and Support

REACO CNC supplies tested A02B-0303-C231 FANUC Main Machine Operator Panels. Contact us for availability, warranty and delivery time.

Worldwide express delivery is available through DHL, UPS and FedEx. Testing video can be supplied before shipment.