Table of Contents
Advertisement
Error
Error name
code
2401H
Module
verification
error
2420H
Fuse blown
error
2440H
Module major
error
2441H
Module major
error
2442H
Module major
error
2443H
Module major
error
2450H
Module major
error
APPX
188
Appendix 1 Error Code List
Error details and cause
A CPU module, I/O module, or intelligent
function module was mounted on the base
unit during operation.
The output module with a blown fuse has
been detected.
• In a multiple CPU system, the control
CPU setting in the system parameters is
different from that of another CPU.
• An error was detected in the I/O module
or intelligent function module during the
initial processing.
An error was detected in the intelligent
function module when a function was
executed.
An error was detected in the intelligent
function module when a function was
executed.
An error was detected in the I/O module or
intelligent function module.
• A major error was notified from an
intelligent function module.
• The I/O module or intelligent function
module is not mounted properly or was
removed during operation.
Corrective action
• Check the detailed information (system
configuration information) of the error by
performing module diagnostics using CW
Configurator, and check the module
corresponding to the displayed number (slot
number).
• Do not mount a CPU module, I/O module, nor
intelligent function module on an empty slot during
operation .
• Take measures to reduce noise.
• Reset the CPU module. If the same error code is
displayed again, the possible cause is a hardware
failure of the module where the error was
detected. Please consult your local Mitsubishi
representative.
• Check the FUSE LED of the output module, and
replace the one with the LED ON.
• Check the detailed information (system
configuration information) of the error by
performing module diagnostics using CW
Configurator, and replace the output module
corresponding to the displayed number (slot
number).
• Review the system parameters in the CPU No.2 or
later and match the number with those of the
smallest numbered CPU module.
• Take measures to reduce noise.
• Reset the CPU module. If the same error code is
displayed again, the possible cause is a hardware
failure of the module where the error was
detected. Please consult your local Mitsubishi
representative.
• Take measures to reduce noise.
• Reset the CPU module. If the same error code is
displayed again, the possible cause is a hardware
failure of the module where the error was
detected. Please consult your local Mitsubishi
representative.
• Take measures to reduce noise.
• Reset the CPU module. If the same error code is
displayed again, the possible cause is a hardware
failure of the module where the error was
detected. Please consult your local Mitsubishi
representative.
• Take measures to reduce noise.
• Reset the CPU module. If the same error code is
displayed again, the possible cause is a hardware
failure of the module where the error was
detected. Please consult your local Mitsubishi
representative.
• Take measures to reduce noise.
• Check the connection status of the extension
cable.
• Check the detailed information (system
configuration information) of the error by
performing module diagnostics using CW
Configurator, and check the module
corresponding to the displayed number (slot
number).
• Reset the CPU module. If the same error code is
displayed again, the possible cause is a hardware
failure of the module where the error was
detected. Please consult your local Mitsubishi
representative.
Detailed
Diagnosti
informati
c timing
on
System
Always
configuratio
n
information
System
Always
configuratio
n
information
System
At power
configuratio
ON or
n
RESET
information
At module
access
System
At module
configuratio
access
n
information
System
Always
configuratio
n
information
Advertisement
Table of Contents
