Mitsubishi Electric MELSEC-Q Series User Manual page 135

Error
Error
Code
Massage
(D9008)
"UNIT
VERIFY
ERR"
31
(Checked
continuously.)
"FUSE
BREAK OFF"
32
(Checked
continuously.)
Table 6.1 Error Code List (Continue)
Detailed
Error CPU
Code States
(D9091)
Current I/O module
information is different
from that recognised
when the power was
Stop
turned on.
or
(1) The I/O module
Contin
— ue (set
by
param
eter)
Stop (1) There is an output
or
Contin
— ue (set (2) The external power
by
param
eter)
101
Error and Cause
(including special
function modules)
connection became
loose or the module
was disconnected
during operation, or
wrong module was
connected.
module of which
fuse is blown.
supply for output
load is turned OFF
or is not connected.
Corrective Action
Read detailed error code
using a peripheral device
and check or replace the
module which
corresponds to the data
(I/O head number).
Or, monitor special
registers D9116 to
D9123 using a peripheral
device and check or
replace the modules if
corresponding data bit is
"1".
(1) Check the FUSE
BLOWN indicator
LED on the output
module and replace
the fuse.
(2) Read detailed error
code using a
peripheral device
and replace the fuse
of the output module
which corresponds
to the data (I/O head
number).
Or, monitor special
registers D9100 to
D9107 using a
peripheral device
and replace the fuse
of the output module
of which
corresponding data
bit is "1".
(3) Check the ON/OFF
status of the external
power supply for
output load.