Products Description
Yaskawa DF8203490-A0 Control Board

Technical Specifications
Model:DF8203490-A0 (JANCD-PC20)
Brand:Yaskawa
Product type:CNC system main control PCB board
Power supply:DC24V
Control function:System data operation,program parsing,backplane bus management
Communication:CNC backplane bus
Mounting:Rack mount
Operating temperature:0~55℃
Relative humidity:5~95% non-condensing
Weight:0.58kg
Certification:CE
System compatibility
DF8203490-A0 belongs to Yaskawa legacy CNC system family,matched with old Yaskawa CNC controllers and CACR-SR series servo drives. Widely used in machining centers,precision lathes and special automation equipment. This is a discontinued legacy main control board for old production line maintenance spare replacement.
Function
DF8203490-A0 serves as high precision CNC main control board. It executes part program parsing and system logic calculation,distributes motion commands to each servo axis via backplane bus. Built-in multi-level hardware protection to safeguard whole CNC system. It supports high-speed data calculation and real-time task scheduling.
Installation
Mount DF8203490-A0 inside CNC controller unit. Complete backplane wiring according to wiring drawing. Upload and configure CNC system parameters via Yaskawa CNC software.
Interface
‑Backplane bus connector
‑Memory expansion slot
‑Digital I/O signal port
‑Onboard high-speed data processing circuit
Circuit feature
Compact rugged PCB layout,equipped with surge and ESD suppression circuit. Fast data calculation response,strong anti-interference performance for industrial cabinet environment. Standard factory firmware preloaded.
Feature
DF8203490-A0 is obsolete Yaskawa CNC series spare part. Typical failures include PCB damage,bus port breakdown,data reading failure. Check board integrity before replacement. This board must match corresponding Yaskawa CNC system,direct substitution without parameter validation is not recommended.
Diagnostic
When bus communication loss,program loading failure or hardware error occurs,the board triggers corresponding alarm codes and sends fault signal to upper CNC panel.

Built‑in function
Real-time CNC program parsing,system task scheduling,backplane bus management,multi-level hardware protection for CNC motion system,used as CNC main control board spare replacement.
Product Brief
DF8203490-A0 (JANCD-PC20) is Yaskawa CNC series main control board for dedicated machine tool and precision automation machinery. Confirm CNC system model matching before ordering. ESD protection required during handling and installation.