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Display Cause of error and countermeasuresError detectedAlarm codeDisplay Cause of error and countermeasuresError detected
AL03AL02AL01
A.E2 OFF ON ON Option WDC error Communications with the host controller
were interrupted.
• Turn the power OFF and back ON again for
both the host controller and the Servo Driv-
er. If the problem still occurs, take the fol-
lowing measures.
• The host controller may be defective. Re-
place the host controller.
• The Option Board may be defective. Re-
place the Option Board.
A.E5 OFF ON ON WDT error MECHATROLINK-II is not being
synchronized.
• There may be effects from noise. Imple-
ment measures against noise, such as
separating the communications lines from
the main-circuit power supply lines.
A.E6 OFF ON ON Communications error A MECHATROLINK-II communications error
occurred two consecutive times.
• Check whether the Communications Cable
(the cable and connector) is making proper
contact.
• The Encoder may be affected by noise. Im-
plement measures against noise, such as
separating the Encoder wiring from the
main-circuit power supply lines.
A.EA OFF ON ON Servo Driver failure A Servo Driver error was detected.
• If the error occurs after powering up again,
replace the Servo Driver.
A.EB OFF ON ON Servo Driver initial
access error
A Servo Driver error was detected.
• If the error occurs after powering up again,
replace the Servo Driver.
A.EC OFF ON ON Servo Driver WDC error A Servo Driver error was detected.
• If the error occurs after powering up again,
replace the Servo Driver.
A.ED OFF ON ON Command not executed A MECHATROLINK-II command was
aborted.
• The command may have been aborted by
an operation from the Support Software
(WMON). Execute the command again af-
ter the Support Software operation has
been completed.
Appendix Chapter 6