Mitsubishi Electric FX Series - Error Code List; Error Codes 6101 to 6409

A.3 Error Code List
When an error has been detected in the PLC, the error code is stored in special registers D8060
to D8067 and D8438. The following actions should be followed for diagnostic errors.
Represented here are some of the most common error codes.
A.3.1 Error codes 6101 to 6409
Error Code List Appendix
A-10 MITSUBISHI ELECTRIC
Error
Special
Register
Error
Code
Description Corrective Action
PLC
hardware error
D8061
0000 No error
—6101 RAM error
6102 Operation circuit error
6103 I/O bus error (M8069 = ON)
Check for the correct con
-
nection of extension cables.
6104
Powered extension unit 24 V failure
(M8069 = ON)
6105 Watchdog timer error
Check user program. The
scan time exceeds the value
stored in D8000.
6106
I/O table creation error (CPU error)
When turning the power ON to the
baseunit, a 24V power failure occurs in
a powered extension unit. (The error
occurs if the 24V power is not supplied
for 10 seconds or more after main
power turn ON.)
Check the power supply for
the powered extension
units.
6107 System configuration error
Check the number of the
connected special function
units/blocks. A few special
function units/blocks are lim-
ited the number to connect.
Communication
error between
PLC and program
-
ming device
(FX
2N and FX2NC
only)
D8062
0000 No error —
6201 Parity, overrun or framing error Check the cable connection
between the programming
device and the PLC. This
error may occur when a
cable is disconnected and
reconnected during PLC
monitoring.
6202 Communication character error
6203 Communication data sum check error
6204 Data format error
6205 Command error
Serial
communication
error
D8063
0000 No error
—
6301 Parity, overrun or framing error
쎲
Inverter communication,
computer link and pro
-
gramming: Ensure the
communication parame
-
ters are correctly set ac
-
cording to their applica
-
tions.
쎲
N:N network, parallel
link, etc.: Check pro
-
grams according to
applications.
쎲
Remote maintenance:
Ensure modem power is
ON and check the set
-
tings of the AT
commands.
쎲
Wiring: Check the com
-
munication cables for
correct wiring.
6302 Communication character error
6303 Communication data sum check error
6304 Communication data format error
6305 Command error
6306 Communication time-out detected
6307 Modem initialization error
6308 N:N network parameter error
6312 Parallel link character error
6313 Parallel link sum error
6314 Parallel link format error
6320 Inverter communication error