YASKAWA DX200 Maintenance Manual page 1153

Alarm Name
Alarm Sub
Number
Code
4972 CONVTR
REGENERATE
OVERLOAD (SV)
Meaning Cause
Connection failure
Module failure (converter)
EAXA21 board failure
other
Primary power supply
failure
Setting error
Connection failure
Remedy
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and insertion of the
following cables and connectors.
∙
EAXA21-CN507,510
∙
EAXB21-CN531,532,533
∙
Converter-CN551,553
∙
EX1SV(External axis servo pack)-CN591,592
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the converter.
(1)Reset the alarm.(In case of major alarm, turn the power OFF then
back ON.)
(2)If the alarm occurs again, replace the EAXA21 and EAXB21 boards.
Save the CMOS.BIN before replacing the board to be safe.
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
Check the primary voltage for the converter.
Check the following settings;
∙
Tool data
∙
JOB
∙
Workpiece
∙
JOB speed
∙
Acceleration and deceleration (ACC, DEC)
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and insertion of the
following cables and connectors.
∙
EAXA21-CN507,510
∙
EAXB21-CN531,532,533
∙
Converter-CN551,553
∙
EX1SV(External axis servo pack)-CN591,592