FANUC A16B-2203-0876 Servo Amplifier Board

Overview

The A16B-2203-0876 is a FANUC servo amplifier board in the A16B-2203 family. FANUC maintenance-manual content identifies A16B-2203-0876 as the wiring board specification used with αi SV 180HV servo amplifier hardware, and public parts listings also describe it as a PCB power board.

This places the board directly in the servo-amplifier section of the installed system.

Its role is tied to high-voltage servo amplifier hardware rather than to general-purpose control expansion. In installed drive systems, boards in this category are matched by amplifier class and hardware family because they belong to the servo-amplifier structure itself.

Keeping the same board model helps preserve the original amplifier-side layout and board assignment.

Technical Data

Application Value

This board is suited to FANUC αi servo amplifier hardware where the installed amplifier section already uses the SV 180HV configuration.

It is especially relevant in board-level repair and replacement where the original amplifier class must remain unchanged and the internal board structure has to match the installed unit.

Because the manual ties this exact board number to αi SV 180HV, the model is best treated as a dedicated amplifier-side board rather than as a generic FANUC PCB.

That makes exact board identification particularly important during service planning.

Selection Notes

The main checks are the exact part number, the A16B-2203 family, and the published association with αi SV 180HV.

These are the points that determine whether the board matches the installed servo amplifier hardware.

FAQ

Q1: What kind of board is A16B-2203-0876?
It is a FANUC servo amplifier board. FANUC maintenance-manual content identifies it as a wiring board specification for αi SV 180HV, while public board listings also describe it as a power-board type spare.

Those descriptions place it in the amplifier hardware section rather than in CPU or I/O hardware.

Q2: Why is the αi SV 180HV mapping important?
Because that mapping is the clearest published hardware reference for the board. It links A16B-2203-0876 directly to a specific servo amplifier class, which is one of the main compatibility checks in replacement work.

Matching the same amplifier-side board family helps keep the installed hardware structure consistent.

Q3: Is this board a control PCB or a power PCB?
The published references describe it in two related ways: the FANUC manual calls it a wiring board specification, while a public board listing calls it a PCB power board.

Both descriptions place it inside the servo-amplifier hardware section, which is the important point for practical identification.

Q4: Why does exact model matching matter on this board?
Because amplifier boards are tied to specific amplifier hardware classes. The manual does not present this as a generic board; it maps it to αi SV 180HV.

That means the correct replacement approach is to match the same board code used in the installed amplifier section.

Q5: What should be checked before ordering?
Check the installed part number, confirm the amplifier hardware corresponds to αi SV 180HV, and verify that the original board in the amplifier section is A16B-2203-0876.

Those are the main compatibility points for this model.