YASKAWA DX100 Maintenance Manual page 518

Alarm Alarm Name Sub
Number Code
4301 CONTACTOR
ERROR
4302 BRAKE CIRCUIT
ERROR
Meaning Cause
Sub Code: Signifies the physical Module failure
No. of contactor in which the alarm (contactor)
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.
EAXA board failure
Software operation
error occurred
EAXA board failure
Remedy
Check if the contactors (1KM and 2KM) are open, and not damaged by
melting or sticking.
Check the insertion and connection of the followings.
·YSU-CN214
·YPU-CN607,CN-611
(1)Reset the alarm.(In case of major alarm, turn the power OFF then back
ON.)
(2)If the alarm occurs again, replace the EAXA board. Save the CMOS.BIN
before replacing the board to be safe.
(1)Reset the alarm.(In case of major alarm, turn the power OFF then back
ON.)
(2)If the alarm occurs again, save the CMOS.BIN in maintenance mode, and
then contact your Yaskawa representative about occurrence status
(operating procedure).
(1)Reset the alarm.(In case of major alarm, turn the power OFF then back
ON.)
(2)If the alarm occurs again, replace the EAXA board. Save the CMOS.BIN
before replacing the board to be safe.