I. Basic Information

Material Number: DF9200952-B0 (Rev.B0, final hardware version)

Compatible System: YASNAC I80 / I80M Full Series CNC (I80 standard configuration, I60/C70 not available)

Assembly Backplate: JANCD-FC001 (I80 standard backplate, single slot installation)

Board Card Size: 267 × 152 mm (I80 universal size)

Weight: Approximately 0.35 kg

Power Supply: DC 5V ±5%, approximately 2.0 A (backplate power supply, power consumption ≈ 10W)

Operating Temperature: 0°C ~ +40°C

Version: Rev.B0 (Unique production version, no derivative models)

II. Core Functions (Integrated CPU + Motion Control)

NC Program Parsing and Management (Core)

Built-in 32-bit high-speed CPU, responsible for NC program decoding, syntax checking, forward processing (up to 100 segments)

Program Storage: On-board 128MB Flash, capable of storing approximately 1000 machining programs

Support for macro programs, variable programming, rigid tapping, coordinate system conversion

Motion Control and Interpolation (Integrated FC230B Core Capability)

Built-in 8-axis servo + 2-axis spindle interpolation (linear / circular / spiral interpolation)

Servo Control: Position / Speed / Torque closed loop, response cycle 125μs

Spindle Control: Speed / Positioning / Rigid tapping, supports analog / bus control

Electronic Gears, Synchronous Following, Multi-axis Linkage (up to 8 axes)

System Bus and Expansion Interfaces

CN20: I80 System Bus (connects to the backplate, communicates with FC210/FC226/FC24x)

CN21: Servo Bus Interface (8 axes, compatible with Mechatrolink-II)

CN22: Spindle Interface (2 axes, analog ±10V or bus)

CN23: Ethernet Interface (100Mbps, program upload / monitoring)

CN24: RS-232C Serial Port (peripheral communication)

PLC and System Monitoring

Integrated basic PLC functions (requires matching FC210/FC211 expansion IO)

On-board 8-channel LED status lights (power, operation, alarm, bus, axis status, etc.)

Real-time monitoring of overcurrent, overvoltage, overheating, axis synchronization errors, program errors

Fault codes displayed directly, supports remote diagnosis

Data Storage and Backup

On-board battery backup SRAM (1MB): stores parameters, tool compensation, coordinate systems

Supports one-click backup of parameters / programs to Flash, saves for 10 years in power failure

Compatible with all parameter formats of the I80 system, can directly replace the old CPU board

III. Compatibility and Compatibility (I80 Standard Configuration)

✅ Required Board Cards (I80 Basic System)

Main CPU Board: JANCD-FC250 (core, must be included)

PLC Board: JANCD-FC210 / FC211 (IO expansion)

Servo Interface Board: JANCD-FC226 (signal conversion, optional)

Data Distribution Board: JANCD-FC240 / FC242 (axis expansion, optional)

Backplate: JANCD-FC001 (install all board cards)

✅ Replacement Rules

Fully replaceable with FC200+FC230B: I80 later models use FC250 to simplify configuration

Downward compatibility: can directly replace the I80 early FC200+FC230B combination (requires updating system firmware) Incompatible with old systems: Only applicable to I80/I80M, absolutely not supported for I60/C70

Expansion capability: Can be expanded to 16–24 axes when paired with FC240/FC242

VII. Common Fault Phenomena

System fails to start, power indicator flashes → FC250 power module damaged or backplane power supply abnormal

NC program cannot be loaded / error message "Program Error" → Flash storage area damaged or program file damaged

Servo axis does not respond / reports "Servo Bus Error" → CN21 interface damaged or bus communication failure

Large contour error / jitter during processing → Interpolation operation module failure or servo parameters mismatch

System frequently alarms "CPU Overheating" → Poor heat dissipation or CPU core aging