Lists Of Error Codes - Mitsubishi Electric MELSEC iQ-F Series Quick Start Manual

9 TROUBLESHOOTING
Checking the LED
Checking Procedure
Status

9.3.2 Lists of error codes

Safety main module (FX5-SF-MU4T5)
The following table lists the error codes stored in the buffer memory (buffer memory 0 in the first module).
Error code Error
3051H Safety extension
module
initializing
communication
error
3052H Safety extension
module
communication
error
3053H Number of
connectable
safety extension
modules excess
error
3902H Configuration
change detected
391AH ENTER button
holding down
period excess
error
3986H Configuration
error
For details on the error codes of the safety main module, refer to
Section 10.4 List of Error Codes in the MELSEC iQ-F FX5 User's Manual (Safety
Checking the Error
Code
Description Cause
Unable to read The CPU module
data from a and the safety
safety extension extension module
module when it is are not powered
initialized. ON simultaneously.
Unable to read The CPU module
data in the safety and the safety
extension module. extension module
are not powered
ON simultaneously.
The number of More than the
connected safety maximum number
extension modules of connectable
exceeds the modules are
maximum number connected.
of connectable
modules.
A configuration The ENTER button
change is was not pressed at
detected. power-on.
When applying The ENTER button
a setting, the was held down too
duration for long at power-on.
holding down the
ENTER button was
too long.
The configuration There is
of the module is inconsistency in a
incorrect. set program and
wiring.
Corrective action
Turn OFF the power of the CPU module and the
safety extension module and turn ON the power
again simultaneously.
P. 26
If an error occurs after powering ON at the same
time, check if the POWER LED of the safety
extension module turns ON. If the POWER LED of
the safety extension module does not turn ON, there
is a possibility that the module is malfunctioning.
Please contact your local Mitsubishi Electric sales
office or representative.
Turn OFF the power of the CPU module and the
safety extension module and turn ON the power
again simultaneously.
P. 26
If an error occurs during operation, check if the
POWER LED of the safety extension module turns
ON. If the LED does not turn ON, reset the power of
the whole system. If the POWER LED of the safety
extension module does not turn ON, there is a
possibility that the module is malfunctioning. Please
contact your local Mitsubishi Electric sales office or
representative.
Connect the safety extension modules within the
connectable limit. If this error occurs even when
the number of connected modules are below the
limit, check the parameter and the actual connected
module. If they are different, adjust the parameter
and the module configuration.
Review the configuration of the safety extension
module.
If the configuration has not been applied (press the
ENTER button) after changing the configuration,
apply the configuration.
P. 26
Apply the configuration again.
Note that, release the ENTER button within three
seconds after the ERROR LED flashes.
P. 26
Check the setting of the rotary switch and wiring.
For the safety application configuration example in
this manual, check the following.
P. 22
P. 23
Control).
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