Alarm List
Alarm Number (4000 to 4999)
Alarm List-510
4170 I/O-EXPANSION
BOARD ERROR:2
Sub Code: Signifies the YFL
unit number in which the
alarm occurred.
Short circuit or ground
fault
(1)Reset the alarm.
(2)Check the following setting.
(1)DC24V output from I/O expansion board. is correct.
(2)FU1 or FU2 fuse in I/O expansion board is not blown.
(3)A short circuit or ground fault has not occurred in IN/OUT line of I/O
expansion board.
Fuse blown (XOI) (1)Reset the alarm.
(2)Replace the fuse(FU1,FU2) in I./O expansion board.
Unit failure (XOI) (1)Reset the alarm.
(2)Check the I/O expansion board.
Connection failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
∙ No.6,7 of CN809 in the YFL unit.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4171 RESERVED ERROR1 Sub Code: Signifies the YFL
unit number in which the
alarm occurred.
Connection failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
∙ No.10,11 of CN809 in the YFL unit.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4172 RESERVED ERROR2 Sub Code: Signifies the YFL
unit number in which the
alarm occurred.
Connection failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
∙ No.14,15 of CN809 in the YFL unit.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4173 FUSE BLOWN
( ROBOT ENCODER)
Sub Code: Signifies the YFL
unit number in which the
alarm occurred.
Blown fuse Replace the fuse(F1) in the YFL unit.
Alarm
Number
Alarm Name
Sub
Code
Meaning Cause Remedy
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