3. Troubleshooting

If trouble occurs in the connection with the robot controller while starting up the CC-Link system or during operation, check the following items in listed order.

3-1 Robot controller front panel LED confirmation

3-2 Programming unit error display confirmation

3-3 CC-Link compatible module LED confirmation

3-4 Confirmation from master station PLC

3.1Robot controller front panel LED confirmation

[Confirmation item 1]

<Confirmation details>

• The “PWR” LED is OFF.

<Cause>

• Power is not being supplied to the robot controller.

<Countermeasures>

Measure the voltage at the AC power input terminal of the power connector with a multimeter and check that the rated voltage is being supplied.

*Refer to the robot controller owner’s manual for the rated voltage for the robot con- troller.

[Confirmation item 2]

<Confirmation details>

• The “ERR” LED is ON.

<Cause>

The robot controller is in emergency stop.

A major error has occurred in the robot controller.

<Countermeasures>

Confirm the error message displayed on the programming unit.

Take measures by following the troubleshooting section in the robot controller in- struction manual.

* Refer to the robot controller instruction manual for details on the errors.

4

Troubleshooting

4-3

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Yamaha Yamaha Robot Controller CC-Link Unit, RCX Series owner manual Troubleshooting, Confirmation item