YASKAWA MOTOMAN DX100, Maintenance Manual, Page: 578 / 729

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2 CPU2 detected an error of
emergency stop signal in robot
controller by the self-diagnostic
check. YSU unit failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YSU unit. Save the CMOS.BIN
before replacing the YSU unit to be safe.
3 CPU2 detected an error of external
emergency stop signal by the self-
diagnostic check. YSU unit failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YSU unit. Save the CMOS.BIN
before replacing the YSU unit to be safe.
4 CPU2 detected an error of external
enable switch signal by the self-
diagnostic check. YSU unit failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YSU unit. Save the CMOS.BIN
before replacing the YSU unit to be safe.
5 CPU2 detected an error of
safeguarding signal by the self-
diagnostic check. YSU unit failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YSU unit. Save the CMOS.BIN
before replacing the YSU unit to be safe.
6 CPU2 detected an error of full
speed test signal by the self-
diagnostic check. YSU unit failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YSU unit. Save the CMOS.BIN
before replacing the YSU unit to be safe.
8 CPU2 detected an error of overrun
signal by the self-diagnostic check. YSU unit failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YSU unit. Save the CMOS.BIN
before replacing the YSU unit to be safe.
9 CPU2 detected an error of
universal input zero signal by the
self-diagnostic check. YSU unit failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YSU unit. Save the CMOS.BIN
before replacing the YSU unit to be safe.
10 CPU2 detected an error of
universal input 1 signal by the self-
diagnostic check. YSU unit failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YSU unit. Save the CMOS.BIN
before replacing the YSU unit to be safe.
Alarm
Number
Alarm Name Sub
Code
Meaning Cause Remedy