YASKAWA FS100 Maintenance Manual page 236

Alarm Alarm Name Sub
Number Code
4320 OVERLOAD
(CONTINUE)
4321 OVERLOAD
(MOMENT)
Meaning Cause
Servo control board failure
Sub Code: Signifies the axis in Setting error
which the alarm occurred
Interference with peripheral
devices
Setting error
Servo control board failure
Connection failure
Module failure
Module failure (converter)
Sub Code: Signifies the axis in Setting error
which the alarm occurred
Interference error
Setting error
Servo control board failure
Connection failure
Module failure
(motor)
Module failure (converter)
Remedy
(1)Reset the alarm
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
Check the following settings.
·The tools or the mass of the workpieces
Remove interference with the workpiece and peripheral device.
Review the JOB to check if the load factor doesn't exceed 100%.
(1)Reset the alarm
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
(1)Reset the alarm.
(2)If the alarm occurs again, replace the following cables.
·The wire harness in the robot.
(motor) (1)Reset the alarm.
(2)If the alarm occurs again, replace the motor.
(1)Reset the alarm
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
Check the following settings.
·The tools or the mass of the workpieces
Remove interference with the workpiece and peripheral device.
Correct the job whether load late does not exceed 100%.
(1)Check that 24V is generated to the brake bolt of the following terminals.
·Motor brake terminal
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
(1)Reset the alarm.
(2)If the alarm occurs again, replace the following cables.
·The wire harness in the robot.
(1)Reset the alarm.
(2)If the alarm occurs again, replace the motor.
(1)Reset the alarm
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
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