Alarm List
Alarm Number (4000 to 4999)
Alarm List-690
EAXA21 board failure (1)Reset the alarm
(2)If the alarm occurs again, replace the EAXA21 board. 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).
4301 CONTACTOR ERROR Sub Code: Signifies the
physical No. of contactor in
which the alarm occurred
Before performing a
connection check of the
wiring, turn OFF the controller
power. Make sure that all the
LEDs of SERVOPACK and
converter are OFF, then verify
that no electricity is charged
using equipment such as a
tester. This process may take
a few minutes after shutting
off the power.
YPU unit failure (1)Reset the alarm.
(2)Check the insertion and connection of the followings.
∙ YSF22-CN217
∙ YPU-CN607,CN-611
(3)Check if the contactors (1KM and 2KM) are open, and not damaged
by melting or sticking.
(4)If the alarm occurs again, replace the YPU unit. Save the
CMOS.BIN before replacing the unit to be safe.
YSF22 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 YSF22 board. Save the
CMOS.BIN before replacing the board to be safe.
EAXA21 board failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the EAXA21 board. 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).
4302 BRAKE CIRCUIT
ERROR
Software operation error
occurred
(1)Reset the alarm.
(2)If the alarm occurs again, replace the EAXA21 board. Save the
CMOS.BIN before replacing the board to be safe.
Alarm
Number
Alarm Name
Sub
Code
Meaning Cause Remedy
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