Alarm List
Alarm Number (4000 to 4999)
Alarm List-934
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4977 GUN SEARCH POS
ERROR
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 for movable gun tip.
Effect of external force (1)Check the amount of the gap between workpiece position and the
teaching position.
(2)Check the lost tip for movable gun.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4978 UNIV.IN/OUT SIGNAL
BROKEN (SERVO)
1 Universal input/output 1
between EAXA21 boards is
broken.
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-CN514
(3)If the alarm occurs again, check if the cable is disconnected.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
2 Universal output 1for SV#1
(SV#2) is inconsistent with
Universal input 1 for
SV#2(SV#1).
Setting error (1)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
∙ EAXA21-CN514
(3)If the alarm occurs again, save the CMOS.BIN in maintenance
mode, and then contact your Yaskawa representative about
occurrence status (operating procedure).
Alarm
Number
Alarm Name
Sub
Code
Meaning Cause Remedy
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