Yaskawa JANCD-BB03 Robot Controller Backplane Product Description

1. Basic Information

Brand: YASKAWA (Yaskawa Electric)

Model: JANCD-BB03

Part Number: DF8203303-A0 (REV.A0 / REV.A01)

Alias: JZNC-RK41-3 (Frame Assembly Model)

Product Type: CPU Frame Backplane / System Bus Baseboard (Backplane Board)

Origin: Japan

Built-in Markings: JANCD-BB03 DF8203303-A0 REV.A0

Weight: Approximately 1.0 - 1.8 kg

Dimensions: Approximately 440mm × 400mm × 40mm 

II. Applicable System

Yaskawa Motoman XRC series robot controller (XRC standard CPU rack)

Yaskawa Motoman NX100 series robot controller

Compatible with the full range of control boards of the JANCD series (CPU, I/O, servo, communication board)

III. Core Functions

JANCD-BB03 is the core base plate of the XRC/NX100 controller, responsible for the interconnection and power supply of all modules in the system:

System bus distribution: Provides 14 slots of JANCD dedicated buses, connecting CPU, servo, I/O, communication, etc. all boards

Power supply distribution management: 24V DC system power is centrally distributed to each slot, with overcurrent protection

Signal routing isolation: Control signals, address buses, data buses are all isolated transmission

Electrical anti-interference: Industrial-grade bus isolation, suppressing electromagnetic interference (EMI/EMC)

Rack expansion: Supports multi-rack cascading, expanding system I/O and axis control capabilities

Status monitoring: Power and bus status monitoring

IV. Hardware Specifications

1. Electrical Parameters

Power supply voltage: 24V DC ±10% (system main power input)

Power consumption: ≤10W (backplane own power consumption)

Bus standard: Yaskawa dedicated JANCD parallel bus

Number of slots: 14 standard JANCD slots (including CPU dedicated slot)

Protection mechanism: Independent overcurrent protection for each slot, bus short-circuit protection

Isolation voltage: ≥1500V AC (bus - power side)

EMC standard: Compliant with EN61000-6-2/4 industrial-level anti-interference

2. Physical and Environment

Material: FR-4 military-grade PCB, multi-layer copper foil design

Installation method: Standard 19-inch cabinet rack installation (JZNC-RK41-3 rack)

Operating temperature: 0°C ~ +40°C

Storage temperature: -20°C ~ +60°C

Environmental humidity: 10%~80% RH (no condensation)

Altitude: ≤1000m

Anti-vibration: 10~55Hz, ≤4.9m/s²

Protection grade: IP20 (installed in the control cabinet)

V. Interface and Structure

Power input: 24V DC main power terminal (large current connection post)

Bus slots: 14 × JANCD gold finger edge connectors (standard slots)

Expansion interface: Rack cascading port (connects to the BB board of the expansion rack)

Status indicator lights: PWR (24V power), BUS (bus activation)

Ground terminal: Independent protection ground (PE) terminal

Fixing method: Guide rail clip + screw locking

VI. Product Features

XRC/NX100 core base plate: Essential component of the controller, without this board, the system cannot operate

14-slot large-capacity expansion: Supports full configuration CPU + servo + multi-axis + I/O + communication board combination

Industrial-grade high reliability: FR-4 board material, gold-plated bus contacts, MTBF > 150,000 hours

Full isolation anti-interference: Three-layer isolation of bus / power / signal, suitable for strong electromagnetic workshop environment

Perfect compatibility: Supports all JANCD-XXXX series boards (1003 CPU, 1021 I/O, 5TU0 relay, etc.)

Maintenance convenient: LED status lights for quick diagnosis of power / bus faults

Standard rack installation: Compatible with 19-inch cabinets, suitable for XRC standard control cabinets

VII. Installable Boards (Typical Configuration)

CPU board: JANCD-1003B / 1003C / 1003E (XRC CPU) I/O Board: JANCD-1021 / 1020 / 1001B (General I/O)

Relay Board: JANCD-5TU0 (TU05), JANCD-TU04

Servo Axis Control: JANCD-1006B / 1007B (Servo Control)

Communication Board: JANCD-XIO1B, JANCD-NIO01B (Field Bus)

Special Functions: JANCD-YEW01-E (Welding), JANCD-YBK01 (Brake)

VIII. Application Scenarios

XRC/NX100 Controller CPU Rack Core Base Board

Multi-axis Robot System Bus Expansion (High-end models with 6-12 axes)

Central Controller for Automated Production Lines (Welding, Handling, Painting Robots)

Repair and Replacement of Old XRC Robots (System cannot start due to backplane failure)

System Expansion and Upgrade (Required when adding I/O or servo axes)

IX. Related Models

JANCD-BB01 / BB02 (Early 8/12-slot backplane, XRC first generation)

JANCD-BB04 (16-slot expansion backplane for NX100 later models)

JZNC-RK41-3 (Standard chassis assembly for BB03)

JANCD-B (Small and simple backplane, MRC/XRC early models)

X. Precautions for Use and Maintenance

Installation / Disassembly must be completely powered off, release static electricity before operation

Ensure stable 24V DC power supply, ripple < 5%

Good grounding (grounding resistance < 4Ω), reduce interference

Securely insert and tighten each board card, no oxidation / dust on the gold fingers

Do not plug or unplug the board card while powered on, to avoid burning the bus

When replacing, strictly check the model JANCD-BB03 and REV.A0 version

Regularly check for any looseness or burn marks on the power terminals and bus slots of the power supply

XI. Common Faults and Diagnostics

PWR light not on: 24V power input failure, main fuse blown

BUS light flickering: Bus short circuit, failure of some board card pulling down the bus

System cannot start: Backplane bus failure, poor contact in CPU slot

Board card not recognized: Poor contact in the slot, triggering overcurrent protection in the corresponding slot