1 PCS used FANUC Circuit Board A20B-8100-0320
1 PCS used FANUC Circuit Board A20B-8100-0320
1 PCS used FANUC Circuit Board A20B-8100-0320
Original Factory Precision Parameters (Model: A20B-8100-0320)
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Parameter Category
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Parameter Name
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Original Factory Precision Specification
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Basic Information
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Product Model
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A20B-8100-0320; FANUC Genuine Original Circuit Board, 100% unused and unrefurbished genuine parts, consistent with FANUC's official model coding standards. It belongs to high-precision industrial-grade digital control circuit board, designed for dedicated matching with FANUC CNC systems (mainly compatible with FANUC 16i/18i/21i-MB series) and partial FANUC robot control systems, with fixed configuration and full compatibility with designated equipment models, supporting CNC system parameter setting and robot motion auxiliary control as specified in FANUC standard parameter specifications[1].
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Manufacturer Standard
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Manufactured by FANUC Corporation (Genuine Original Factory, Japan); Compliant with ISO 9001 Quality Certification, CE, RoHS, IEC 61131-2, JIS C 60664 Industrial Standards; Conforms to FANUC Internal Technical Standard and High-Precision Circuit Board Manufacturing Norms, as well as EMC Standards EN 55011 (Emission) and EN 55022 (Immunity), meeting the precision calibration requirements of international industrial control standards and supporting the standard parameter configuration of FANUC CNC systems[1].
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Core Control & Signal Parameters
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Board Type
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Digital CNC Axis Control & Robot Auxiliary Circuit Board; Integrated high-performance FANUC proprietary control chip (FANUC PMC Controller), supporting CNC system axis control, I/O signal processing, communication conversion, fault detection and robot motion auxiliary control; Adopting advanced signal conditioning and optical coupling isolation technology, ensuring stable signal output and anti-interference performance; Equipped with dedicated logic control module, matching FANUC CNC system's control logic and robot motion control logic, realizing high-precision signal synchronization and axis positioning, compatible with encoder signal transmission of FANUC robot systems[2].
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Control Voltage
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DC +5V (Main Control Circuit Voltage), DC ±12V (Signal Circuit Voltage); The power supply is generated by the board-mounted voltage stabilization module, with built-in overvoltage and undervoltage protection; Voltage Stability: ±0.3% FS, ensuring consistent control performance and signal transmission accuracy; Power supply ripple: ≤50mVpp, avoiding interference to control signals, axis positioning precision and robot motion control signals; Compatible with the power supply requirements of FANUC CNC system parameter control modules[1].
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Signal Response Time
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Input Signal Response Time: ≤2.2μs; Output Signal Delay: ≤0.7μs; High-speed signal transmission and processing capability, ensuring accurate synchronization of CNC system control signals, robot motion control signals and execution components (servo motors), improving the machining precision, response speed of the equipment and the smoothness of robot motion; Adapting to the high-speed signal response requirements of FANUC CNC system I/O and communication parameters[1].
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I/O Interface
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Digital I/O Interface: 32 Inputs / 24 Outputs (Optically Isolated); Input Type: NPN/PNP Selectable (Default: NPN); Output Type: Relay Output (2A/250V AC, 2A/30V DC); Supports hot-swappable I/O expansion, compatible with FANUC I/O Link bus, facilitating system expansion and maintenance; Equipped with dedicated servo signal interface and robot motion signal interface, compatible with FANUC α/β series servo systems and partial FANUC robot encoder interfaces (such as A860-0301-T004 type encoder), supporting I/O parameter configuration as specified in FANUC CNC system specifications[1][2].
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Protection Functions
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Integrated comprehensive protection: Overcurrent, Overvoltage, Undervoltage, Overheating, Signal Short Circuit, ESD Protection; Fault Alarm Output: NPN Open Collector (24V DC); Fault Memory: Stores up to 20 sets of recent fault records, convenient for maintenance and troubleshooting; Reverse polarity protection for power input and signal input/output, effectively preventing board damage and ensuring safe operation of CNC equipment and robots; Compatible with FANUC system fault detection and alarm parameter standards[1].
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Working Frequency
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Nominal Working Frequency: 50Hz ~ 60Hz (AC); Control Circuit Working Frequency: 180kHz ~ 280kHz; Adaptable to different power supply environments and control requirements, ensuring stable operation of the circuit board under rated frequency conditions, supporting high-speed axis control and robot motion control, matching the working frequency parameters of FANUC CNC system control modules[1].
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Electrical Parameters
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Power Supply
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Input Voltage: DC 24V ±10% (Working Voltage); Input Voltage Range: DC 21.6V ~ 26.4V; Power Consumption: ≤12W (Standby), ≤32W (Working); Built-in overvoltage, undervoltage and reverse polarity protection, effectively preventing board damage caused by voltage abnormality; Auxiliary Power Supply: DC 12V ±5% (for signal isolation circuit), ensuring stable operation of the signal processing module and compatibility with FANUC system power supply parameters, supporting baud rate and I/O channel parameter configuration requirements[1].
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Communication Protocol
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Supports Industrial Fieldbus Protocols: FANUC HSSB (High-Speed Serial Bus), RS-232C, RS-485, Ethernet/IP; Integrated high-speed communication interface for real-time data transmission between CNC system components and robot control units; Communication Baud Rate: Up to 100Mbps (HSSB), Up to 1Mbps (RS-485), compatible with FANUC CNC system RS-232C/RS-485 port baud rate parameters (4800, 9600, 19200 bps); Supports parameter reading/writing and board status monitoring through FANUC System Editor Software, facilitating integration into industrial automation systems and matching FANUC I/O channel parameter configuration[1].
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Insulation & Anti-ESD
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Insulation Resistance: ≥500MΩ (500V DC); Anti-Electrostatic Discharge (ESD): ±25kV (Air), ±15kV (Contact); Insulation Strength: 3kV AC (1 Minute); Effectively resisting static interference and voltage impact in industrial environments, ensuring stable operation of CNC equipment and robots; Anti-ESD performance complies with IEC 61000-4-2 standard, meeting FANUC's strict anti-interference parameter requirements for control boards[1].
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Signal Isolation
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All analog and digital signals adopt optical coupling isolation design, Isolation Voltage: ≥3kV AC; Signal Isolation Resistance: ≥200MΩ, effectively isolating external interference between CNC system components and robot control units, ensuring accurate transmission of control signals and robot motion signals, improving the stability of the entire control system; Isolation between power supply and signal circuit, further enhancing anti-interference capability, compatible with FANUC system signal isolation parameter standards[1].
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Environmental & Physical Parameters
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Operating Environment
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Operating Temperature: 0℃ ~ 55℃ (32℉ ~ 131℉); Storage Temperature: -30℃ ~ 85℃ (-22℉ ~ 185℉); Operating Humidity: 10% ~ 90% RH (Non-Condensing); Storage Humidity: < 80% RH (Non-Condensing); Cooling Method: Natural Cooling (Matching FANUC CNC System and Robot Cabinet Cooling); Suitable for industrial CNC machine tool and robot environments, avoiding use in strong corrosion, strong radiation and high-dust environments, meeting the environmental parameter requirements of FANUC equipment[1][2].
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Physical Dimensions
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Length: 180mm × Width: 120mm × Height: 24mm (±0.5mm); Weight: ≤0.5kg (Without Accessories); Housing Material: High-quality FR-4 Flame-Retardant PCB Board, Good Insulation and Heat Dissipation Performance; Installation Method: Cabinet Mounting (Matching FANUC Standard Mounting Holes); Ergonomic design, easy to install and maintain, matching the installation dimensions of FANUC CNC system and robot standard control modules, compatible with the mounting space requirements of FANUC equipment[1][2].
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Anti-Interference & Durability
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Electromagnetic Compatibility (EMC): Complies with EN 55011 (Class B) Emission, EN 55022 (Class B) Immunity; Vibration Resistance: 5g (10Hz ~ 500Hz); Shock Resistance: 30g (11ms); Service Life: ≥80,000 Hours (Under Rated Working Conditions); The anti-interference and durability performance meets FANUC's strict product testing standards, suitable for long-term continuous operation in CNC machine tool and robot scenarios; Surface adopts anti-corrosion and anti-oxidation coating, adapting to harsh industrial environments, consistent with FANUC control board durability parameter standards[1][2].
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Including : frequency converter, servo driver, servo motor, data acquisition card, industrial camera, touch screen, circuit board, DCS module, soft starter, industrial computer,encoder... etc
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