YASKAWA FS100 Maintenance Manual page 135

Alarm Alarm Name Sub
Number Code
910 CPU ERROR 1
(CPU-201R)
920 BUS ERROR 1
(CPU-201R)
950 CPU ERROR
(servo#1)
951 CPU ERROR
(servo#2)
990 SYSTEM ERROR 1
(Main CPU)
1000 ROM ERROR
(Main CPU)
1001 ROM ERROR 10
(SERVO)
Meaning Cause
An error was detected in the CPU. Main CPU board failure
The JL chip does not operate Main CPU board failure
normally.
An error was detected in the CPU Connection failure
of servo board #1.
Servo control board failure
Main CPU board failure
An error was detected in the CPU Connection failure
of servo board #2.
Servo control board failure
Main CPU board failure
Power Lost Signal Error Main CPU board failure
Software operation error
occurred
1*:A checksum error occurred in Servo control board failure
the board or the EEPROM.
(*: axis No.)
Remedy
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)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)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
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