Unable to communicate with servo board XX. (for E0x series controllers)

Error handling: Motor power OFF.
Error reset: Not possible.

Description: Communication with the servo board cannot be started when the controller power is turned ON.

Main causes:

1. The servo board is not connected, or the harness between the main CPU board and servo board has an open circuit.

2. A problem with the servo board.

3. The main CPU board is faulty.

4. The motherboard is faulty.

5. The master (robot arm) controller power is turned ON while the slave controller (multi-axis controller) power is OFF. (In this case, [Servo board 2] is displayed in the error message.)

Countermeasures:

1. Check the connections to the servo board.

2. When using a slave controller (multi-axis controller), switch on its power first, then switch on the master (robot arm) controller.

3. Turn the controller power OFF and then ON again. If an initialization message appears, select .

4. If the phenomenon cannot be reproduced or the program cannot return to normal, replace the main CPU board, servo board, or motherboard.

5. If the error cannot be cleared after taking the above countermeasures, report all details to Kawasaki service, including the complete message, robot model, controller model, machine number, and AS/servo software versions.