1. General Information

• Model: JANCD-TU05 (common misspelling: JANCD-TUO5)

• Manufacturer: Yaskawa Electric Corporation (Motoman Robotics)

• Applicable Controllers: Motoman XRC / ERC series robot controllers

• Function: Main power ON/OFF control, main contactor drive, emergency stop (E-stop) interlock, auxiliary power sequencing

• Core Relay: Omron LY2, 24 VDC coil

• Revisions: REV.A, REV.B, REV.C0 (C0 is latest, fully compatible with older revisions)

2. Specifications

2.1 Electrical

• Supply Voltage: 24 VDC ±10%

• Fuses: 2 × 5 A fast-blow (primary/secondary circuits)

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

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

2.2 Physical

• Dimensions: 120 mm × 100 mm × 30 mm

• Weight: Approx. 100 g

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

2.3 Environmental

• 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: ≤ 1,000 m above sea level

3. Connectors & Pin Assignment

• CN1: 24 VDC Power + Control Input

  • Pin 1: +24 VDC

  • Pin 2: 0 VDC (GND)

  • Pin 3: Main ON signal (from CPU)

• CN2: Main Contactor Output

  • Pin 1: Contactor coil +

  • Pin 2: Contactor coil −

• CN3: E-stop / Safety Interlock Input

  • Pin 1: E-stop IN

  • Pin 2: E-stop GND

• CN4: Auxiliary Power Output

  • Pin 1: +24 VDC (switched)

  • Pin 2: 0 VDC

4. LED Indicators

• PWR (Green): ON when 24 VDC supply is normal

• ON (Green): ON when main contactor is energized (closed)

• ALM (Red): ON if:

  • Fuse blown (either 5 A fuse)

  • E-stop circuit open

  • Relay coil fault

  • Main contactor feedback error

5. Installation Procedure

1. Power OFF the controller and all connected equipment.

2. Wait 5 minutes for internal capacitors to discharge.

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

4. Insert JANCD-TU05 into the designated cabinet slot.

5. Secure with 4 × M3 screws (torque 0.8–1.0 N·m).

6. Connect CN1–CN4 per cabinet wiring diagram.

7. Power ON the controller; verify:

   • PWR = ON

   • ON = ON

   • ALM = OFF

6. Safety Features

• Dual 5 A Fuses: Overcurrent protection for control circuits

• E-stop Interlock: Complies with Safety Category 3

• Relay Isolation: Electrical separation between low-voltage control and power circuits

• Fault Alarm: ALM signal sent to controller for diagnostic logging

7. Maintenance & Troubleshooting

7.1 Maintenance

• Quarterly: Check connector tightness and fuse condition.

• Annually: Clean dust with low-pressure dry air; inspect relay contacts for wear or discoloration.

7.2 Troubleshooting

• PWR OFF:

  • Check 24 VDC supply at CN1 pins 1–2.

  • Verify CN1 wiring and connector integrity.

• ALM ON:

  • Check both 5 A fuses; replace if blown.

  • Test E-stop circuit continuity at CN3.

  • Inspect relay coil and contacts for damage.

• ON OFF (PWR ON):

  • Check main contactor coil resistance.

  • Verify CN2 connections and coil voltage.

• Intermittent Operation:

  • Inspect connector pins for corrosion or bending.

  • Check relay contacts for pitting or oxidation.

8. Compatibility & Replacement

• Replaces: JANCD-TU02, JANCD-TU02B (wiring changes may be required)

• Backward Compatible: JANCD-TU05 REV.C0 directly replaces REV.A / REV.B (no wiring changes)

• Applications: Welding, material handling, assembly, general automation

9. Ordering Information

• Part Number: JANCD-TU05 (specify revision if required: REV.C0)

• Manufacturer: Yaskawa Electric Corporation

• Warranty: 12 months under normal operating conditions

10. Warnings

• For qualified technical personnel only.

• Disconnect all power sources before servicing; wait for capacitor discharge.

• Do not modify the board or replace fuses with incorrect ratings (fire/equipment damage risk).

• Yaskawa is not liable for improper use, modification, or installation.