Alarm List
Alarm Number (4000 to 4999)
Alarm List-700
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4321 OVERLOAD
(MOMENT)
Sub Code: Signifies the axis
in which the alarm occurred
Setting error Check the following settings.
∙ The tools or the mass of the workpieces
Interference error Check if the manipulator interferes with any objects such as
workpieces or peripheral devices. If interferes, remove the object.
Setting error Review the JOB to check if the load factor doesn't exceed 100%.
YBK21 board failure (1)Check if the power has been supplied to the brake voltage of the
following terminal.
Check that the brake has not been locked due to malfunction of the
contactor.
∙ YBK21-CN400
∙ Motor brake terminal
(2) If any error is found, replace the YBK21 board.
Connection failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the following cables.
∙ The wire harness in the robot.
Module failure (motor) (1)Reset the alarm.
(2)If the alarm occurs again, replace the motor.
EAXA21 board failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the EAXA21 board. Save the
CMOS.BIN before replacing the board to be safe.
YPU unit failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YPU unit. Save the
CMOS.BIN before replacing the board to be safe.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4322 AMPLIFIER
OVERLOAD
(CONTINUE)
Sub Code: Signifies the axis
in which the alarm occurred
Setting error Check the following settings.
∙ The tools or the mass of the workpieces
Alarm
Number
Alarm Name
Sub
Code
Meaning Cause Remedy