Alarm List
Alarm Number (4000 to 4999)
Alarm List-713
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.
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.
Module failure (amplifier) (1)Reset the alarm.
(2)If the alarm occurs again, replace the amplifier.
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.
Other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4343 SV DRESS SPEED
ERR (UNDER PRESS)
Sub Code: Signifies the axis
in which the alarm occurred
Metal pieces getting into
dresser blades
Check if metal pieces getting into dresser blades prevent the dresser
from rotating.
Setting error Check the following settings.
∙ "PRESS CONDITION" setting in TIP DRESS CONDITION file is too
small. (Check if they are too high.)
∙ "SPEED FLUCTUATION LIMIT" setting in TIP DRESS CONDITION
file. (Check if it is too small).
Alarm
Number
Alarm Name
Sub
Code
Meaning Cause Remedy
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