Alarm List
Alarm Number (4000 to 4999)
Alarm List-933
Module failure
(Regenerative resistor)
(1)Disconnect the converter CN557 to check if there is no cable
disconnection.
(2)If disconnected, replace the regenerative resistor.
Module failure (converter) (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the converter.
EAXA21 board failure (1)Reset the alarm.(In case of major alarm, turn the power OFF then
back ON.)
(2)If the alarm occurs again, replace the EAXA21 and EAXB21 boards.
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).
4973 POSITION ERROR
(COLLISION DETECT)
Sub Code: Signifies the axis
in which the alarm occurred
Setting error Confirm the following settings;
∙ Tool information
∙ Workpiece
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4974 POSITION ERROR
(START LIFT)
Sub Code: Signifies the axis
in which the alarm occurred
Software operation error
occurred
(1)Reset the alarm.
(2)If the alarm occurs again, save the CMOS.BIN in maintenance
mode, and then contact your Yaskawa representative about
occurrence status (operating procedure).
4975 WRONG START LIFT
AXIS (SERVO)
Sub Code: Signifies the axis
in which the alarm occurred
Software operation error
occurred
(1)Reset the alarm.
(2)If the alarm occurs again, save the CMOS.BIN in maintenance
mode, and then contact your Yaskawa representative about
occurrence status (operating procedure).
4976 GUN SEARCH
DETECT RANGE
OVER
Sub Code: Signifies the axis
in which the alarm occurred
Setting error Check the following settings.
∙ Home position of gun axis.
∙ "The pulse-stroke converter" in the gun condition file.
∙ The value of the wear correction.
Effect of external force (1)Check that no objects exist between workpiece and gun.
(2)Check the lost tip.
Alarm
Number
Alarm Name
Sub
Code
Meaning Cause Remedy
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