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A20B-2901-0763 Fanuc serial spindle memory module with 256 KB SRAM and 128 KB FROM

FANUC A20B-2901-0763 Memory and Serial Spindle Module, 256 KB SRAM, 128 KB FROM

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• Testing Video Provided

$132.00 USD
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FANUC A20B-2901-0763 Memory and Serial Spindle PCB, 256 KB SRAM, 128 KB FROM

Brand FANUC
Model A20B-2901-0763
Handling Time Within 1–2 working days
Shipping Method DHL / UPS / FedEx
Estimated Delivery Time (via DHL) Asia: 1–3 business days
Europe: 2–4 business days
North America: 2–4 business days
South America: 3–6 business days
Middle East & Africa: 3–6 business days
Oceania: 2–5 business days
Warranty New / Refurbished: 1 year
Used (90% new): 3 months
Category Memory and Serial Spindle PCB
Parameter Description 256 KB SRAM; 128 KB FROM; serial spindle control
Service Test video will be sent before delivery
Packing Cartons

Manufacturer-Confirmed Configuration

FANUC maintenance manual B-62705EN/03 identifies A20B-2901-0763 as a memory and spindle module with 256 KB SRAM, 128 KB FROM and serial spindle control. It is a combined CNC memory and spindle-control module, not a complete spindle amplifier or a general-purpose memory board.

The manual documents this specification within the Series 21/210 Model B hardware configuration. The exact drawing number is essential because related A20B-2901-076x modules use different memory capacities and spindle-control types.

Replacement and Data Protection

Back up all recoverable CNC and PMC data before removal. FANUC states that replacing the memory and spindle module can erase the ladder program and NC data; these must be restored afterward. Installation should be completed by qualified CNC personnel with power isolated and electrostatic-discharge precautions in place.

Compatibility Check Before Ordering

  • Match A20B-2901-0763 and every revision shown on the original label.
  • Compare the host main board, connectors and original Series 21/210-B configuration.
  • Confirm 256 KB SRAM, 128 KB FROM and serial spindle control.
  • Prepare backups of NC data and the PMC ladder before replacement.

Related FANUC CNC Components

Browse related FANUC printed circuit boards and control modules or FANUC CNC control parts. Related models are not interchangeable unless the complete FANUC specification matches.

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