This product is a compact multilayer industrial printed circuit board. It functions as a signal conversion and conditioning module, responsible for external I/O signal transfer, power supply monitoring and auxiliary logic control. It provides electrical isolation and signal matching between the main CPU boards such as JANCD-CP01 and CP01B and external peripherals including sensors, operation panels, relays and contactors. The board is coated with protective conformal coating and equipped with surge suppression and anti-vibration components, which enables stable performance under harsh industrial conditions with dust, moisture and continuous vibration.

Manufacturer: Yaskawa Electric (Yasnac / Motoman)Model: JANCD-CU04Type: Interface Terminal Board, Auxiliary Control BoardCompatible Systems: Motoman XRC robot controllers, YASNAC LX1 / LX3 CNC systemsPower Supply: 24 V DC ±10%Typical Current Consumption: Approximately 420 mAOperating Temperature: 0 °C to +55 °CStorage Temperature: -20 °C to +85 °CProtection Features: Overvoltage protection, overcurrent protection, surge suppression and ESD protectionWeight: Approximately 0.98 kgProduct Status: Discontinued, supplied as spare parts only

It realizes reliable transmission and conversion of various external input and output signals for the whole control system. It conducts real-time monitoring of internal and external power supplies and feeds back abnormal voltage signals to the main control system timely. It builds electrical isolation between internal control circuits and external field devices to effectively prevent interference and damage caused by external electrical surges. Onboard LED indicators clearly display power status and signal activity for quick on-site inspection and fault diagnosis. The standard rack-mount structure allows easy installation, removal and direct replacement in original controller cabinets. With industrial-grade anti-vibration, dust-proof and moisture-proof design, it ensures long-term stable operation on production floors.

It is widely used in Motoman XRC robot controllers for automated welding, material handling, assembly and other robotic production lines. It also serves YASNAC LX1 and LX3 CNC systems equipped on lathes, milling machines and other precision machine tools. It is a common replacement part for maintenance and renovation of legacy Yaskawa automation equipment.

JANCD-CU04 is exclusively developed for XRC robot platforms and LX series CNC systems. It cannot be used interchangeably with CU01, CU03 or other CU series boards for different controller versions. Before replacement, please confirm the matching of the part number, hardware revision and the connected main CPU board and peripheral modules. This model is only applied to maintenance of existing old equipment, and not recommended for new system construction.

Install the board inside a clean, dry and well-ventilated control cabinet, and keep it away from corrosive gas, heavy dust and liquid. Insert the board firmly into the designated rack slot and make sure all wiring terminals and board connectors are fully locked and connected. Check that the input 24 V DC power supply stays within the rated range before powering on the system. Conduct regular inspections on the circuit board, connectors and wiring terminals to remove dust and check for oxidation or loose contact. Do not modify the circuit or connect loads beyond the rated specification. Use only original or fully compatible replacement parts to guarantee system safety and operational stability.