FANUC Series18i-MB CNC Basic Unit P/N A02B-0283-B502

Technical Specifications

Model:A02B-0283-B502

Brand:FANUC

System compatibility:Integrated LCD mounted CNC basic unit for FANUC Series18i-MB CNC system,2-slot hardware framework. Built-in 10.4 inch color LCD and soft keys. Widely equipped on vertical machining centers,CNC lathes and milling machines with 18i-MB system.

Function:All-in-one CNC main control unit. Integrates CNC motherboard,10.4" color TFT display,soft keys and 2 expansion slots for optional cards. Receives MDI program and motion commands,outputs axis instructions to servo drives. Supports high-speed serial fibre servo communication. Built-in comprehensive protection:overvoltage,undervoltage,memory error,system watchdog alarm. Stores CNC parameters,part programs and alarm history.

Installation:Embedded panel cut-out mounting on machine operator cabinet,terminal ports for power,servo fibre and I/O wiring.

Interface:

‑High speed optical fibre servo communication port

‑Digital I/O signal terminals

‑2 expansion slots for additional function boards

‑24VDC power input connector

‑Front 10.4 inch color LCD and soft function keys

‑LED system status and fault indicator lamps

Circuit feature:CNC mainboard high-speed logic circuit,image drive circuit,hardware watchdog,non-volatile memory for program and parameter storage,signal surge protection.

Feature:Discontinued legacy FANUC 18i-MB integrated system unit. 2-slot design supports expansion board installation. Complete integrated unit with LCD & soft keys,MDI keypad is separate accessory. Must verify hardware version before replacement.

Diagnostic:System boot screen and alarm codes displayed on LCD;mainboard fault,memory error or fibre communication failure will cause CNC startup abnormality.

Power supply:24VDC

Protection class:IP52 front panel;IP20 rear terminal area

Horizontal operating temperature:0℃ ~ +55℃

Storage temperature:-20℃ ~ +80℃

Relative humidity:5%‑90% non‑condensing

Vibration:Complies with machine tool industrial environmental requirement

Weight:5.8kg

Dimensions:310mm ×290mm ×95mm

Certification:CE,UL

Built‑in function

A02B-0283-B502 18i-MB CNC basic unit serves as core controller of FANUC CNC machine tools. It processes NC programs,transmits motion instructions to servo amplifiers and monitors whole machine operating status. Widely used for CNC machine tool electrical cabinet spare‑part replacement.

Product Brief

A02B-0283-B502 belongs to FANUC 18i-MB CNC controller family,2-slot LCD mounted integrated basic unit. Confirm system software version and expansion board configuration before ordering. Check fibre cable,24V power and I/O wiring during commissioning. Widely applied for CNC equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation.