fanuc pcb
FANUC PCBs and circuit boards
The boards inside a FANUC control: servo and spindle boards, the CPU and axis cards, the motherboard they plug into, and the ROM, graphics and operator-panel boards around them. One board is named in the catalogue by number; the rest are stocked by sub-family.
Board families in the catalogue
The seller publishes the PCB family as a set of named sub-families rather than a long number list: servo PCBs, spindle PCBs, drive spindle control cards, system CPU, system axis cards, system motherboard, system ROM cards, system graphics and operator panel PCBs. That is the shape of a real board shelf — boards are pulled by control generation and slot, and the sub-family names are how maintenance staff describe them. The one board the catalogue names outright is the A16B-3200-0219, which has its own detail page.
Board-level I/O is published separately under I/O units, where the seller lists module I/O and PCB I/O. A buyer holding a board number that starts A16B or A20B can send it through the inquiry form with the control series; the desk works from the sub-family groupings and the generation together.
Board sub-families
The sub-families as the seller publishes them, and where each sits in the control.
| Sub-family | Where it sits | Page |
|---|---|---|
| A16B-3200-0219 | Named board in the catalogue | Part page |
| Servo PCBs | In the servo drive chain of the control | Servo amplifiers |
| Spindle PCBs | In the spindle drive chain | Spindle amplifiers |
| System CPU | The control's processor board | CNC controls |
| System axis cards | Axis control on the board level | CNC controls |
| System motherboard | The backplane the other boards plug into | CNC controls |
| System ROM and graphics | System software and display graphics boards | Displays |
| Operator panel PCBs | Behind the operator panel and MDI | Displays |
Board faults and board swaps
A board is the smallest replaceable unit inside a control, and board-level faults are the ones the test bench exists to find: a control that fails intermittently can be narrowed to one board before any board is bought. Buyers split between the two routes the desk offers — a shelf board, or the failed board sent in for repair — and the choice usually turns on how many boards the symptom could live on. Naming the symptom and the control series in the inquiry lets the answer address the likely boards in order.
Handling and identity
Boards carry their identity on the board itself: the printed number, and the control generation they belong to. Copy both. A board pulled from a Series 0i cabinet and a board with a similar number from a 16i cabinet are different stock, and the desk will ask the generation question if the inquiry does not answer it. Photographing the board's printed number and sending the photo's reading in the message is a normal way to order from this shelf.
Related pages
Send an inquiry
Send the part numbers you need, or the number of a unit you want assessed, with the machine each belongs to. One desk answers for the shelves and the bench.
Open the inquiry form