Description
The Fanuc A20B-8102-0118 is an original control printed circuit board designed for the Fanuc Alpha i (αi) series servo and spindle amplifier modules. This PCB acts as the intelligence hub of the drive system, processing high-speed encoder feedback, executing vector control algorithms, and regulating PWM signals to the power IGBT module. Engineered for integration with CNC systems, this board ensures micro-second response times for multi-axis coordinated motion control.
TECHNICAL SPECIFICATIONS
Manufacturer: Fanuc
Part Number: A20B-8102-0118
Alternative Part Number: A20B81020118
Device Type: CNC Servo/Spindle Control PCB
Compatible Series: Fanuc Alpha i (αi) Servo Amplifiers (SVM) and Spindle Amplifiers (SPM)
Logic Input Voltage: 24V DC (±10%)
Feedback Interface: Serial Encoder (FSSB Interface compatible)
Processor Architecture: Fanuc proprietary ASIC with high-speed DSP
Layer Count: Multi-layer industrial grade glass-epoxy board
Operating Temperature: 0°C to +55°C
Storage Temperature: -20°C to +80°C
Relative Humidity: 10% to 90% (Non-condensing)
Dimensions: 180 mm x 120 mm x 30 mm
Weight: 0.35 kg
Certifications: CE, UL, RoHS
TECHNICAL COMPATIBILITY AND INTEGRATION
The A20B-8102-0118 features precise Technical Compatibility with a wide range of Fanuc Alpha i amplifier modules, including single-axis (SVM1) and dual-axis (SVM2) configurations. It slides directly into the internal control slot of the amplifier housing, mating with the main power board via high-density card-edge connectors. This unit interfaces seamlessly with Fanuc CNC controls (Series 16i, 18i, 21i, and 30i/31i/32i) via the Fanuc Serial Servo Bus (FSSB) optical interface, eliminating electrical noise propagation and optimizing signal integrity.
INDUSTRIAL APPLICATION SCENARIO
In high-speed automotive machining lines, a sudden servo loop error or feedback signal degradation on a 5-axis horizontal machining center halts production instantly. Replacing a faulty control board with the Fanuc A20B-8102-0118 restores absolute synchronization between the spindle orientation and feed axes. Its advanced thermal performance allows it to operate continuously in high-temperature electrical enclosures typical of heavy industrial environments, eliminating positioning errors caused by thermal drift in analog components.
COMMERCIAL AND LOGISTICAL DETAILS
Original Engineering: This control board represents authentic Fanuc Original Engineering, ensuring exact electrical match, firmware compatibility, and physical fit-up. Utilizing genuine parts avoids the risks of tracking errors, overcurrent trips, or premature failures associated with third-party repairs.
Lead Time: Standard packaging and prompt dispatch processes are utilized to minimize machine downtime. Contact our logistics division for current Lead Time and expedited shipping options.
Key Attributes
Place of Origin: Japan
Model Number: A20B-8102-0118
Brand Name: FANUC
Product Name: Fanuc PCB Circuit Board
Condition: Original new
Warranty: 12 Months
Stock: Available
Shipping terms: All terms are accepted
Payment terms: All terms are accepted
Lead Time: 1-2 Days
Delivery Time: 3-5 Days
Package: Carton packing
MOQ: 1 Piece
Packaging and Delivery
Selling Units: Single item
Single package size: 40X40X20 cm
Single gross weight: 0.500 kg
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