YASKAWA DX100 Maintenance Manual page 577

Alarm Alarm Name Sub
Number Code
63
64
65
66
4392 M-SAFETY INPUT 0
CHECK
ERROR(CPU2)
1
Meaning Cause
CPU2 detected an inconsistency YSU unit failure
of speed mode 1 feedback ready
signal between function safety
unit.
CPU2 detected an inconsistency YSU unit failure
of universal output ready signal.
CPU2 detected an inconsistency Connection failure
of universal output feedback
signal.
CPU2 detected an inconsistency Connection failure
of brake release signal in the
EAXA board.
Unit or connection
cable failure
CPU2 detected an error of YSU unit failure
emergency stop signal in the
programming pendant by the self-
diagnostic check.
CPU2 detected an error of enable YSU unit failure
switch signal in the programming
pendant by the self-diagnostic
check.
Remedy
(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.
(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.
(1)Reset the alarm.
(2)If the alarm occurs again, check the followings.
·Wiring confirmation of YSU unit (CN216 connector) and pin numbers 45, 46,
49, and 50 of MXT terminal block
(1)Reset the alarm.
(2)If the alarm occurs again, check the followings.
·Wiring confirmation of pin numbers A3, A5, B3, and B5 of YSU unit (CN210
connector)
(1)Reset the alarm.
(2)If the alarm occurs again after confirming the connection, execute the
following contents. Save the CMOS.BIN before replacing the YSU unit to be
safe.
·Replacement of YSU unit
·Replacement of EAXA board
·Replacement of connection cable
(1)Reset the alarm.
(2)If the alarm occurs again after confirming the confirming the rotary switch,
replace the YSU unit. Save the CMOS.BIN before replacing the YSU unit to
be safe.
(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.