1. General Information

• Model: JANCD-TU01 (misspelled: JANCD-TUOI)

• Manufacturer: Yaskawa Electric (Motoman Robotics)

• Applicable Controllers: Motoman XRC / ERC robot controllers

• Function: Main power ON/OFF, contactor control, E-stop interlock, auxiliary power distribution

• Revision: REV.A / REV.B (compatible with TU02/TU05 in same cabinet)

2. Specifications

2.1 Electrical

• Supply Voltage: 24 VDC ±10%

• Fuses: 2 × 3 A fast-blow (control circuits)

• Relay Rating: 24 VDC / 5 A (resistive)

• Control Signals: E-stop interlock, main contactor coil, power enable

2.2 Physical

• Dimensions: 110 mm × 95 mm × 25 mm

• Weight: ~90 g

• Mounting: Standard XRC/ERC slot; 4 × M3 screws (0.8–1.0 N·m)

2.3 Environmental

• Operating Temp: 0 °C to +40 °C

• Storage Temp: −10 °C to +60 °C

• Humidity: 5%–80% RH (non-condensing)

• Vibration: ≤ 0.5 G (10–500 Hz)

3. Connectors & Pinout

• CN1: 24 VDC Power & Control In

  1: +24 VDC

  2: 0 VDC (GND)

  3: Main ON (CPU signal)

• CN2: Main Contactor Output

  1: Coil +

  2: Coil −

• CN3: E-stop / Safety Interlock

  1: E-stop IN

  2: E-stop GND

• CN4: Auxiliary 24 VDC Out

  1: Switched +24 VDC

  2: 0 VDC

4. LED Indicators

• PWR (Green): 24 VDC supply OK

• ON (Green): Main contactor energized

• ALM (Red): Fault (fuse blown, E-stop open, relay/coil error)

5. Installation

1. Power OFF controller; wait 5 min for capacitor discharge.

2. Use anti-static wristband.

3. Insert TU01 into cabinet slot; secure with 4 × M3 screws.

4. Connect CN1–CN4 per cabinet diagram.

5. Power ON; verify PWR=ON, ON=ON, ALM=OFF.

6. Safety

• Dual 3 A fuses: Overcurrent protection

• E-stop interlock: Safety Category 3 compliant

• Relay isolation: Control/power circuit separation

• ALM fault signal: Sent to controller for logging

7. Maintenance & Troubleshooting

7.1 Maintenance

• Quarterly: Check connectors & fuses.

• Annually: Clean dust (low-pressure air); inspect relay contacts.

7.2 Troubleshooting

• PWR OFF: Check 24 VDC at CN1; verify wiring/connector.

• ALM ON: Check 3 A fuses; test E-stop continuity; inspect relay/coil.

• ON OFF (PWR ON): Check contactor coil resistance; verify CN2 voltage.

• Intermittent: Inspect pins for corrosion/bending; check contacts for pitting.

8. Compatibility

• Replaces: JANCD-TU02 (older), JANCD-TU02B

• Compatible with: JANCD-TU05 (same cabinet, different revision)

• Applications: Welding, material handling, assembly robots

9. Ordering

• Part Number: JANCD-TU01 (specify revision: REV.A/REV.B)

• Manufacturer: Yaskawa Electric Corporation

• Warranty: 12 months (normal operation)

10. Warnings

• For qualified personnel only.

• Disconnect power before servicing; wait for discharge.

• Do not modify board; use correct fuse rating (fire/equipment risk).

• Yaskawa not liable for improper use/installation.