JANCD-TU01
June 02, 2026

JANCD-TU01

JANCD-TU01 is a terminal unit board manufactured by Yaskawa Electric Corporation for Motoman YASNAC XRC and ERC robot controllers. It serves as a general-purpose external I/O terminal interface, providing screw-terminal connections for field wiring of digital inputs, digital outputs, and safety signals. The board simplifies on-site wiring and improves maintainability in robotic automation systems.

Description

1. General Information

JANCD-TU01 is a terminal unit board manufactured by Yaskawa Electric Corporation for Motoman YASNAC XRC and ERC robot controllers. It serves as a general-purpose external I/O terminal interface, providing screw-terminal connections for field wiring of digital inputs, digital outputs, and safety signals. The board simplifies on-site wiring and improves maintainability in robotic automation systems.

2. Specifications

2.1 Electrical Ratings

  • Logic Supply: 24 VDC ±10%, 0.3 A typical

  • I/O Rating: 24 VDC, 50 mA per point (max.)

  • Isolation: Photocoupler isolation between field and controller logic

  • Power Consumption: ≤8 W

2.2 Environmental Conditions

  • Operating Temperature: 0°C to +40°C

  • Storage Temperature: −10°C to +60°C

  • Humidity: 5%–80% RH, non-condensing

  • Vibration: ≤0.5 G (10–500 Hz)

  • Altitude: Up to 1,000 m

2.3 I/O Configuration

  • Digital Inputs: 16 points (24 VDC sink/source selectable)

  • Digital Outputs: 8 points (relay or transistor type, depending on revision)

  • Safety Inputs: Emergency stop, servo enable, limit switches

  • Signal Type: NPN/PNP compatible (jumper selectable)

3. System Compatibility

  • Compatible Controllers: YASNAC XRC, ERC series

  • Compatible Main Boards: JANCD-CP04B, JANCD-CP03B

  • Application: Material handling, welding, assembly, and general automation

  • Mounting: Standard slot in XRC/ERC controller cabinet

4. Connectors and Terminals

CN1 (Controller Bus Interface)

  • 50-pin flat-cable connector for communication with CPU board

  • Transmits I/O status, safety signals, and configuration data

TB1 (Field Wiring Terminal Block)

  • Screw terminals for all digital inputs, outputs, and safety signals

  • Terminal assignment includes 24 VDC, 0 V, input common, output common, E-stop, and limits

CN2 (24 VDC Power Input)

  • Connects to controller internal 24 VDC supply for board logic

5. LED Indicators

  • PWR: Green, lit when 24 VDC power is normal

  • IN01–IN16: Green, lit when corresponding input is active

  • OUT01–OUT08: Green, lit when corresponding output is active

  • ALM: Red, lit when safety signal fault or communication error occurs

6. Installation Instructions

  1. Power off the controller and wait 5 minutes for capacitors to discharge.

  2. Use an anti-static wristband to prevent ESD damage.

  3. Insert the board into the designated slot and secure with four M3 screws (torque 0.8–1.0 N·m).

  4. Connect CN1 to the CPU board with the provided flat cable.

  5. Wire field devices to TB1 according to the terminal assignment.

  6. Connect 24 VDC power to CN2.

  7. Restore power and verify LED indicators: PWR on, no ALM.

7. Safety Features

  • Hardware emergency stop interface (Category 3 compliant)

  • Overcurrent protection on I/O circuits

  • Input/output short-circuit detection

  • Isolation between field side and controller logic

  • Safety signal monitoring with alarm output

8. Maintenance and Troubleshooting

Maintenance

  • Inspect terminal block screws quarterly for tightness.

  • Clean dust from the board with low-pressure dry compressed air.

  • Check flat cable connections annually.

Troubleshooting

  • PWR LED off: Check CN2 24 VDC supply and wiring.

  • ALM LED on: Verify E-stop circuit, limit switches, or CN1 cable.

  • Input LED not lit: Check field device wiring and common voltage.

  • Output not activating: Verify output common and load wiring.

9. Ordering Information

  • Model Number: JANCD-TU01

  • Replacement Part Number: 161540-1

  • Manufacturer: Yaskawa Electric Corporation (Motoman Robotics Division)

  • Country of Origin: Japan

  • Warranty: 12 months under normal operating conditions

10. Warning and Caution

This manual is for qualified technical personnel only. Read all safety instructions before installation and operation. Unauthorized modification is prohibited and may cause equipment damage or injury. Yaskawa is not liable for damage resulting from improper use or modification.


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