Maintenance Parts Replacement Procedure

WARNING

  • Be sure to power off the controller and remove the power plug from the controller before starting any maintenance work. If you perform a maintenance work while the power is applied to the product or before the high-voltage charging component has been fully discharged, an electrical shock or serious safety problem may occur.
  • Be sure to remove the power plug from the Controller before opening the maintenance cover. If you touch the AC power supply input terminal inside the enclosure, an electrical shock or serious safety problem may occur.

CAUTION

  • Be careful not to drop conductive objects or foreign objects such as removed screws inside the enclosure. Doing so may cause combustion, electric shock, and or failure of the product.
  • Fix the cover screws with the specified torque. Failure to do so voids the IP65 warranty.

KEY POINTS

  • Be careful not to damage the cables.
  • Discard spent maintenance parts in accordance with any applicable laws in your country.
  • Perform parts replacement equipped with gloves and earth strap and with a countermeasure against static electricity.

Items to prepare

  • TP4
  • New main cable
  • Recommend: Manufactured by Wiha
    Torque driver model: 2852V0.5-2.0
    Screw replacement blade model: 2859MT10
  • Recommend: Manufactured by TAKACHI
    Torque wrench model: TWH0.5-5, TWE19

Removing main cable

  1. Turn OFF the controller.
  2. Remove the power plug from the Controller.
  3. Use a screwdriver to remove the maintenance cover (by removing the 4 fixing screws).
  4. Disconnect the LAN cable (a) and thin cables (b) from the connectors.
  5. Loosen the nuts using a torque wrench and remove them.
  6. Loosen the cable fixing part using a torque wrench and remove it from the enclosure hole.
  7. Pull out the thin cables through the enclosure hole.
  8. Pull out the LAN cable through the enclosure hole.

Attaching main cable

  1. Slide the fixing portion of the main cable using the torque wrench.
  2. Insert the LAN cable through the enclosure hole.
  3. Insert the thin cables through the enclosure hole.
  4. Connect the LAN cable (a) and thin cables (b) to the connectors.

CAUTION

Be sure to insert the cables to the deepest position.

  1. Attach the cable fixing part to the enclosure hole and turn to fix it using a torque wrench.
  2. Tighten the nuts using a torque wrench.
    Align the hexagonal lines of the nuts.
    (Tightening torque: 1.05 Nm)
  3. Use a screwdriver to attach the maintenance cover (with the 4 fixing screws).
    Tighten screws in a diagonal sequence to fix the maintenance cover firmly.
    (Tightening torque: 0.8 to 1.0 Nm)
  4. Attach the power plug to the controller.
  5. Turn ON the controller.
  6. To check if the cables have been replaced correctly, perform the following three operations on TP4 and ensure that the product operates normally:
    • Power the product on.
    • Press the Emergency Stop button.
    • Turn ON the Enable switch.

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