Mitsubishi Electric MELSEC iQ-R Series User Manual page 114

Error Error name
code
2400H Module
verification
error
2401H Module
verification
error
2420H Fuse blown
error
2440H Module major
error
2442H Module major
error
2443H Module major
error
2450H Module major
error
4 TROUBLESHOOTING
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4.7 Error Codes
Error details and cause
• The module information at power-on
differs from the information of
modules actually mounted.
• The I/O module or intelligent function
module is not mounted properly or
was removed during operation.
A CPU module, remote head 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.
An error has been detected in the I/O
module or intelligent function module
during the initial processing.
An error has been detected in the I/O
module or intelligent function module.
An error has been detected in the I/O
module or intelligent function module.
• A major error has been notified from
the intelligent function module
connected.
• The I/O module or intelligent function
module is not mounted properly or
was removed during operation.
Action
• Check the detailed information (system
configuration information) of the error by
executing module diagnostics using the
engineering tool, and check the module
corresponding to the displayed number.
• Take measures to reduce noise.
• Reset the remote head module, and run it again.
If the same error code is displayed again, the
possible cause is a hardware failure of the error
module. Please consult your local Mitsubishi
representative.
• Check the detailed information (system
configuration information) of the error by
executing module diagnostics using the
engineering tool, and check the module
corresponding to the displayed number.
• Do not mount a CPU module, remote head
module, I/O module, nor intelligent function
module during operation.
• Take measures to reduce noise.
• Reset the remote head module, and run it again.
If the same error code is displayed again, the
possible cause is a hardware failure of the error
module. Please consult your local Mitsubishi
representative.
• Check the FUSE LED of each output module,
and replace the one with the FUSE LED on.
• Check the detailed information (system
configuration information) of the error by
executing module diagnostics using the
engineering tool, and replace the module
corresponding to the displayed slot number.
• Take measures to reduce noise.
• Reset the remote head module, and run it again.
If the same error code is displayed again, the
possible cause is a hardware failure of the error
module. Please consult your local Mitsubishi
representative.
• Take measures to reduce noise.
• Reset the remote head module, and run it again.
If the same error code is displayed again, the
possible cause is a hardware failure of the error
module. Please consult your local Mitsubishi
representative.
• Take measures to reduce noise.
• Reset the remote head module, and run it again.
If the same error code is displayed again, the
possible cause is a hardware failure of the error
module. Please consult your local Mitsubishi
representative.
• Take measures to reduce noise.
• Check the connection of an extension cable.
• Check the detailed information (system
configuration information) of the error by
executing module diagnostics using the
engineering tool, and check the module
corresponding to the displayed number.
• Reset the remote head module, and run it again.
If the same error code is displayed again, the
possible cause is a hardware failure of the error
module. Please consult your local Mitsubishi
representative.
Detailed Diagnostic
information timing
System Always
configuration
information
System Always
configuration
information
System Always
configuration
information
System At power-on,
configuration at RESET
information
System At module
configuration access
information
System At module
configuration access
information
System Always
configuration
information