Alarm List
Alarm Number (4000 to 4999)
Alarm List-505
4157 COOLING FAN5
ERROR
Sub Code 1to 8: Signifies the
EAXA/EAXB board No. in
which the alarm occurred
Cooling fan failure (1)Reset the alarm.
(2)Replace the cooling fan of manipulator.
Check the wiring from a manipulator to a servo board.
* Move the manipulator to the safe position in the teach mode.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4160 FUSE BLOWN
(EARTH DETECTOR)
Sub Code: Signifies the YFL
unit number in which the
alarm occurred.
Loose fuse (1)Reset the alarm.
(2)(1)Check the fuse(F21) in the YFL unit is not disconnected.
Blown fuse Replace the fuse(F21) in the YFL unit.
Parts failure Replace the fuse(F21) in the YFL unit.
Unit failure (YFL) (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace 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).
4161 SAFETY RELAY
ERROR
Sub Code: Signifies the YFL
unit number in which the
alarm occurred.
Connection failure (1)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
∙ CN609 in the YPU unit.
∙ No.1,2 of CN806 in the YFL unit.
Stick relay Replace the safety relay.
Parts failure Replace the safety relay.
Unit failure (YFL) (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace 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).
4162 CIRCUIT TRIPPED
(QFVIN)
Sub Code: Signifies the YFL
unit number in which the
alarm occurred.
Incorrect setting Check if the circuit protector is turned on.
Alarm
Number
Alarm Name
Sub
Code
Meaning Cause Remedy
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