Alarm List
Alarm Number (4000 to 4999)
Alarm List-454
4109 DC 24V POWER
SUPPLY FAILURE
(I/O)
0000_0000_0000_0001:
Detector circuit error.
0000_0000_0000_0010: Fuse
blown (YIO board)
0000_0000_0000_0011:
External 24V power supply
error.
Connection failure (1)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
Check the insertion and connection of the followings.
∙ CN303 of YIO board
∙ Fuse (blown) of YIO board
∙ The communications cable for the I/O module
Voltage error (1)Reset the alarm.
(2)If the alarm occurs again, Check the 24V external power supply. If
abnormal, replace the 24V external power supply.
YIO board failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YIO board. Save the
CMOS.BIN before replacing the board to be safe.
Short circuit or ground
fault
(1)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
Check the insertion, connection, Short circuit or ground fault of the
followings.
∙ YFC22-CN219(81,82,92,93 : +24V2U3)
∙ YFC22-CN219(83,84,94,95 : 024V2)
∙ YIO-CN306,CN307,CN308,CN309
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4110 SHOCK SENSOR
ACTION
Shock sensor activated Shock sensor is activated. Select "OVERRUN&SHOCK SENSOR"
under sub menu "ROBOT" to reset the sensor. After that, perform
avoidance movement by jog operation.
Fuse failure (1)Reset the alarm.
(2)If the alarm occurs again, check the connection of the fuse of
YSF22 board and then turn the power ON again.
Connection failure (1)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
∙ YSF22 board-CN216, CN218
∙ EAXA21 board CN512
Alarm
Number
Alarm Name
Sub
Code
Meaning Cause Remedy
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