General Description

Specifications

• Manufacturer: Yaskawa Electric (Yasnac / Motoman)

• Model: JANCD-CU03

• Type: System Control & Communication Board

• Compatible Systems: Motoman XRC robot controllers; YASNAC LX1/LX3 CNC systems

• Power Supply: 24 V DC ±10% (logic and auxiliary circuits)

• Typical Current Draw: Approx. 400 mA

• Operating Temperature: 0 °C to +55 °C

• Storage Temperature: -20 °C to +85 °C

• Monitoring Functions: System voltage supervision, power-good signal generation, fault detection

• Communication Interfaces: High-speed data bus to CPU, I/O, and peripheral boards

• I/O Expansion: Additional auxiliary input/output signal routing

• Protection Features: Overvoltage, overcurrent, ESD protection; onboard fuses

• Weight: Approx. 0.95 kg

• Status: Discontinued, spare parts only

Key Features

• Enhanced system supervision: Monitors 24 V DC and internal supply voltages with higher precision, generates power-good signals for safe startup and fault detection.

• High-speed communication hub: Routes control, data, and clock signals between the main CPU and peripheral boards with improved bandwidth for synchronous operation.

• Auxiliary power management: Regulates and distributes auxiliary power for onboard logic and low-voltage peripherals with overload protection.

• Extended I/O signaling: Provides additional auxiliary input/output channels for connecting external sensors, switches, and indicators.

• LED status indicators: Onboard LEDs for power, system ready, communication, and fault status to simplify diagnostics.

• Rack-mountable form factor: Directly compatible with XRC/CNC controller cabinets for easy integration and replacement.

• Industrial ruggedness: Conformal coating, surge suppression, and vibration resistance for factory-floor reliability.

• Fault tolerance: Designed to withstand minor electrical transients and signal fluctuations without system shutdown.

Applications

• Motoman XRC robot controllers: System coordination, power monitoring, communication management, and extended I/O for welding, material handling, and assembly robots.

• YASNAC LX1/LX3 CNC systems: Auxiliary control, communication supervision, and extended I/O for lathes, milling machines, and precision machine tools.

• Legacy automation retrofits: Replacement of obsolete system control boards in existing Yaskawa installations requiring enhanced communication and monitoring.

Compatibility Notes

• JANCD-CU03 is platform-specific and only compatible with XRC robot and LX1/LX3 CNC systems. It is not interchangeable with CU01, CU02, or CU-series boards for newer Yaskawa systems (e.g., YRC robots, i80 CNC).

• When replacing, verify compatibility with the main CPU board (CP01/CP01B), power supply unit, and all connected peripheral boards.

• Designed exclusively for maintenance replacement in existing installations; not for new system builds.

Installation and Maintenance

• Install in a clean, dry, ventilated control cabinet to avoid dust, moisture, and corrosive gases.

• Securely seat the board in the designated rack slot and ensure all connectors (power, signal, bus) are fully engaged.

• Prior to power-on, confirm the 24 V DC supply is within the specified range; check onboard fuses for integrity.

• Periodically inspect connectors, PCB, and components for wear, oxidation, or damage; clean contacts as needed.

• Avoid exposing the board to direct sunlight, high humidity, or excessive vibration to prevent degradation.

• Use only Yaskawa-compatible replacement parts to maintain system safety and reliability.