YASKAWA FS100 Maintenance Manual page 238

Alarm Alarm Name Sub
Number Code
4324 CONVERTER
OVERLOAD
4326 OVER SPEED
4327 WRONG MOTOR
ROTATION
4328 SERVO TRACKING
ERROR
Meaning Cause
Setting error
Setting error
Module failure (converter)
Servo control board failure
Sub Code: Signifies the axis in Setting error
which the alarm occurred
Connection failure
Module failure
(motor)
Servo control board failure
Sub Code: Signifies the axis in Connection failure
which the alarm occurred
Connection failure
Servo control board failure
Sub Code: Signifies the axis in Setting error
which the alarm occurred
Interference error
Remedy
Check the settings of the following.
·If the tool or the workpiece used has exceeded the allowable load.
Adjust the job speed.
Adjust the acceleration/deceleration of ACC and DEC instructions.
(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 controller. Save the CMOS.BIN before
replace controller to be safe.
Check the following settings.
·Reduction in the motion speed
(1)Reset the alarm.
(2)If the alarm occurs again, check that U-, V- and W-phase are appropriately
connected.
(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.
(1)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state of the
following cables and connectors.
·The motor power line
·The encoder line
(1)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state of the
following cables and connectors.
·The power cable connection of the manipulator cable.
(1)Reset the alarm.
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
Check the settings of the followings.
·Tool file setting
·The tools or the mass of the workpieces
Remove interference with the workpiece and peripheral device.
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