New Fanuc CNC Circuit Board Servo Driver Board A16B-2202-0184

A16B-2202-0184 | FANUC A16B-2202 Series PCB — 018x Range / Alpha Drive Board / CNC Drive Spare

A16B-2202 — FANUC Alpha Drive Board Family

The A16B-2202 series is a confirmed FANUC Alpha drive component board family — spanning wiring boards, power interface PCBs, and internal circuit boards for Alpha servo amplifiers, power supply modules, and spindle drives.

Confirmed boards within the A16B-2202 series include PCBs serving:

• Alpha SVM servo modules (servo amplifier wiring boards)
• Alpha PSM power supply modules (confirmed: A16B-2202-0542 inside the A06B-6081-H103 PSM)
• Alpha SPM spindle modules

The A16B-2202-0184 at the 018x position occupies the early range of the A16B-2202 numbering — the 018x range reflects an earlier Alpha drive component generation within the series.

Key Product Information

A16B-2202 Drive Boards — Power Interface Layer

FANUC Alpha drive modules use A16B-2202-series boards as power-stage interface PCBs within each drive module. These boards:

Power stage connection: Route gate drive signals, current sensor outputs, and fault detection signals between the drive module's power hardware and its control PCB.

Protection monitoring: Collect temperature, overcurrent, and bus fault signals from the power stage and present them to the control electronics for protective action.

Connector routing: Provide the physical connection points for power terminals, sensor cables, and control signals within the drive module structure.

Application Scenarios

Alpha drive board fault: A FANUC Alpha servo or power supply module develops power stage faults. A16B-2202-0184 is identified from its label inside the drive module. Replacement restores drive function.

Drive maintenance: A production facility maintaining FANUC Alpha drive equipment stocks A16B-2202-0184 for the specific drive module in which it is installed.

FAQ

Q1: How do I confirm A16B-2202-0184 is the correct board for my FANUC Alpha drive?

Read the part number from the board's label inside the drive module. If it reads A16B-2202-0184, this is the confirmed replacement. Cross-reference with the applicable FANUC Alpha maintenance manual's spare parts table to confirm the board's position within the specific drive module.

Q2: What is the relationship between A16B-2202-0184 and the control PCB in the same drive module?

Alpha drive modules contain two main boards. A16B-2202-0184 handles power-level connections — gate drive routing, current sensing, and fault signal collection from the power stage. A separate control PCB handles drive algorithm, communication, and servo regulation. Both must function correctly for the drive to operate.

Q3: What drive alarm symptoms indicate an A16B-2202-0184 board fault?

Power stage alarms — overcurrent, IGBT gate fault, or phase current anomalies appearing consistently on drive enable — suggest a drive board fault. If the control PCB, motor, and supply test correctly but power stage alarms persist, A16B-2202-0184 is the next diagnostic priority.

Q4: What ESD and safety precautions apply when handling A16B-2202-0184?

Power the FANUC Alpha drive system completely down. Verify DC bus voltage is below safe levels before accessing internal boards — Alpha drive modules retain bus charge after power-down. Handle A16B-2202-0184 with an anti-static wrist strap on an ESD-safe surface.