Used Fanuc PC Board A16B-2202-0471 A16B22020471 A16B-22O2-O471

A16B-2202-0471 | FANUC A16B-2202 Series Drive PCB — Alpha Series CNC Drive Systems / Industrial Automation Spare

A16B-2202 — Core Drive PCB Series

The A16B-2202 series is FANUC's primary family of drive-related printed circuit boards for the Alpha (αi) CNC drive generation. This series covers servo and spindle amplifier boards across multiple drive module families:

Spindle control cards (04xx range): Including A16B-2202-0421 (PSM control PCB), A16B-2202-0431/0432/0435 (Alpha SPM 6088 series control cards for spindle amplifier modules), all confirmed in this session.

Servo wiring boards (07xx range): Including A16B-2202-0740–0743 (Alpha-i SVM1 FSSB wiring boards), A16B-2202-0750–0753 (Alpha SVM2 Type A/B wiring boards) — the complete wiring board family for single-axis and dual-axis servo amplifier modules.

SVM1 wiring boards (07xx range): A16B-2202-0760–0762 (Alpha SVM1-40S, SVM1-40L, SVM1-80 wiring boards for Type A/B interface), also confirmed in this session.

Larger SVM1 wiring boards: A16B-2202-0790/0991 (for SVM1-240 and SVM1-360 of the Alpha Type A/B series).

The A16B-2202-0471 is one specific board within this comprehensive Alpha drive PCB family — serving the function defined by its specific part number in the applicable drive module.

Key Product Information

Alpha Series — The Foundation of a Generation

The Alpha series (both Alpha and Alpha-i) powered FANUC CNC machine tools through a productive era of manufacturing. Alpha series drives appear in:

Machining centres: X, Y, Z servo axes and main spindle, with the servo and spindle drives sharing the same drive cabinet and drawing from the same PSM DC bus.

Turning centres: One or two servo axes plus a spindle — often configured with one Alpha PSM and two SVM modules alongside an SPM.

Grinding machines: Precision servo axes where the Alpha drive's current control performance supports the high servo stiffness needed for grinding depth precision.

Large machining systems: Multi-axis configurations with multiple SVM2 modules and a high-power SPM, all coordinated from one Alpha cabinet.

The A16B-2202 series PCBs are the internal electronics that make these drive systems function — the A16B-2202-0471 contributes to this infrastructure in its specific role.

Application Scenarios

Alpha drive module PCB fault: A FANUC CNC drive system develops a fault traceable to the A16B-2202-0471 board. The board is identified from its label inside the drive module. Replacement restores the drive's function.

Drive module refurbishment: A specialist CNC service workshop overhauling an Alpha series drive module replaces the A16B-2202-0471 as part of a comprehensive internal board renewal.

FAQ

Q1: How do I confirm A16B-2202-0471 is the correct board for my Alpha drive module?

Read the part number from the board label inside the specific drive module. If it reads A16B-2202-0471, this is the confirmed replacement. Cross-reference against the drive module's spare parts list in the FANUC Alpha series maintenance manual (B-65165E or the applicable manual version) to confirm the board's functional role.

Q2: Does A16B-2202-0471 serve servo amplifier or spindle amplifier applications?

The A16B-2202 series covers both servo and spindle amplifier boards — with confirmed examples including SVM wiring boards (servo) and SPM control cards (spindle). The A16B-2202-0471 at the 047x position sits within this range; confirm from the host drive module's documentation which application category applies.

Q3: Is A16B-2202-0471 compatible with both Alpha and Alpha-i (αi) drive generations?

The A16B-2202 series boards span multiple Alpha generations. Confirm the specific drive generation compatibility from the host module's documentation — the Alpha (A06B-6079, A06B-6087, A06B-6088) and Alpha-i (A06B-6096, A06B-6111) series have distinct hardware. The exact compatibility of A16B-2202-0471 is confirmed from the applicable maintenance manual spare parts table.

Q4: What discharge safety applies before accessing A16B-2202-0471 inside a drive module?

Alpha series drive modules contain DC bus capacitors retaining dangerous voltage after mains power removal. Follow the discharge wait procedure in the FANUC Alpha series maintenance manual for the applicable module. Verify bus discharge with a calibrated voltmeter before opening any drive module housing.

Q5: Is A16B-2202-0471 available from FANUC specialist service channels?

Yes. A16B-2202 series Alpha drive boards are stocked by specialist FANUC distributors including GE Fanuc Spares, CNC Electronics, CNC Spares UK, and DNC Electronics — all of whom maintain comprehensive A16B-2202 Alpha series board inventories. Exchange, repair, and direct supply are available through these channels.