Alarm List
Alarm Number (1000 to 1999)
Alarm List-397
1874 M-SAF VOLTAGE
WATCH ERROR
The CPU1 of YSF21 board
has detected an illegal voltage
of the CPU2.
The number indicates as CPU
which detected error,
surveillance voltage, and 0001
or 0002 value.
0001:Over voltage
0002:Low voltage
YSF21 board failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF21 board.
(3)If the alarm 1860 occurs, replace the YSF21 board.
Other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
1875 M-SAF I/O BOARD
VOLTAGE ERROR
subcode:
CPU1 1:CPU1 detected a 5V
low voltage
CPU1 2:CPU1 detected a 5V
high voltage
CPU1 3:CPU1 detected a 24V
low voltage
CPU1 4:CPU1 detected a 24V
high voltage
CPU1 5:CPU1 detected a
voltage error in 24V power of
the board.
CPU2 1:CPU2 detected a 5V
low voltage
CPU2 2:CPU2 detected a 5V
high voltage
CPU2 3:CPU2 detected a 24V
low voltage
CPU2 4:CPU2 detected a 24V
high voltage
CPU2 5:CPU2 detected a
voltage error in 24V power of
the board.
YSF22 board failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF22 board.
Alarm
Number
Alarm Name Sub
Code
Meaning Cause Remedy
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