Alarm List
Alarm Number (4000 to 4999)
Alarm List-716
4351 DRIVE BELT SNAP
DETECT
Sub Code: Signifies the axis
in which the alarm occurred
Driving belt failure (1)Check that the driving belt is not broken.
(2)If the driving belt is broken, replace the driving belt.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4352 TWIN DRIVE OVER
DEVIATION
Sub Code: Signifies the axis
in which the alarm occurred
Connection failure (1)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
∙ EAXA21-CN501 to 506,CN510
∙ EAXB21-CN531,532,533
∙ Amplifier-CN581,582
∙ Converter CN551,552A,552B
∙ EX1SV (External axis SERVO PACK)-CN591,592,595
Connection failure (motor
power)
(1) If the alarm occurs again, check the wiring of phase-U, -V, and -W
isn't disconnected.
(2) If disconnected, replace the motor power wire.
Connection failure (motor
brake)
(1) Check that the motor brake wire is not disconnected.
(2) If disconnected, replace the motor brake wire.
YBK21 board failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YBK21 board.
Module failure (amplifier) (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the amplifier.
Module failure (motor) (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the motor.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4353 DEFECTIVE TAUGHT
POINT (ENDLESS)
Sub Code: Signifies the axis
in which the alarm occurred
Setting error Check the following settings.
∙ Setting of the command soft (JOB)
∙ MRESET instruction to corresponding axis
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.
Alarm
Number
Alarm Name
Sub
Code
Meaning Cause Remedy
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