Model Definition

• DF920666: Base part number for Yaskawa robot system control board

• B0: Hardware revision B0; improved circuit layout, stronger anti-interference, and better thermal performance

Technical Specifications

Electrical

• Operating Voltage: 24 VDC ±20% (20–28 VDC)

• Typical Current: 1.8 A

• Power Consumption: ~35 W

• Signal Level: 24 VDC industrial standard

• Isolation: 500 VAC between logic and field circuits

Mechanical & Environmental

• Mounting: Slot-mounted inside robot controller cabinet

• Protection Class: IP20

• Operating Temperature: 0 °C to +50 °C

• Storage Temperature: -25 °C to +70 °C

• Humidity: 10%–90% RH (non-condensing)

• Dimensions (W×H×D): ~80 mm × 220 mm × 30 mm

• Weight: ~0.7 kg

Interfaces

• System Bus: High-speed backplane bus (up to 10 Mbps)

• I/O: Integrated digital input/output for internal interlocking

• Communication: Serial link to teach pendant and peripheral boards

• Debug: Dedicated service port for diagnostics and firmware updates

Core Functions

• Executes motion control logic and coordinates robot axis movements

• Processes safety interlock signals and emergency stop logic

• Manages power distribution monitoring and overcurrent protection

• Facilitates high-speed data exchange between CPU, I/O, and servo units

• B0 revision improves noise immunity in high-EMI environments

• Supports hot-swap replacement for minimal downtime during maintenance

Applications

• Yaskawa Motoman DX100, DX200, YRC1000 robot controllers

• Welding, handling, palletizing, and assembly robot workstations

• Automation lines requiring high system reliability and safety

• Spare part replacement and system upgrade projects for installed Yaskawa robots

Maintenance Notes

• Ensure adequate cabinet ventilation for heat dissipation

• Keep environment dry and dust-free to prevent contamination

• Disconnect all power before installation or removal

• Periodically check board seating and connector tightness

• Use original or fully compatible replacements to maintain system integrity