Alarm List
Alarm Number (4000 to 4999)
Alarm List-708
Module failure
(Regenerative resistor)
(1)Disconnect the converter CN557 to check if there is no cable
disconnection.
(2)If disconnected, replace the regenerative resistor.
Module failure (converter) (1)Reset the alarm.
(2)If the alarm occurs again, replace the converter.
EAXA21 board failure (1)Turn the power OFF then back ON.
(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).
4335 GROUND FAULT Sub Code: Signifies the axis
in which the alarm occurred.
(If the alarm occurred at an
axis which is driven by a
common converter, all the
subject axes are indicated.)
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.
∙ EAXA21-CN507,510
∙ Converter CN551,553,555
∙ EX1SV (External axis SERVO PACK)-CN592
·YPU unit-CN604
Connection failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the following cables.
Check the axis in which earth fault occurs in the alarm history screen.
If both robot axes and external axes use the same type converter, the
earth fault may occur on the external axis not the robot axis. (There is
also a possibility that it is stained by water)
(1) External axis cables (Power wire)
(2) Traveling axis cable (Power wire)
(3) Power supply cable (Robot axis, external axis) (Power wire)
(4) Internal cables (Robot axis, external axis) (Power wire)
Module failure
(Regenerative resistor)
Check if there is no ground fault in the regeneration resistors.
Alarm
Number
Alarm Name
Sub
Code
Meaning Cause Remedy
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