APPX
Appendix 1 Error Codes
751
A
3683H Parameter error
(safety function)
• The safety refresh monitoring time
in the safety communication
setting is shorter than the
transmission interval monitoring
time, or is set to the same value.
Stop • Check the detailed information
(parameter information) of the error by
executing module diagnostics using
the engineering tool, and correct the
parameter settings corresponding to
the displayed number so that the safety
refresh monitoring time in the safety
communication settings will not be
shorter than or equal to the
transmission interval monitoring time.
Parameter
information
At power-on,
at RESET
3684H Parameter error
(safety function)
• The safety CPU parameters do
not exist.
Stop • Write the safety CPU parameters. Parameter
information
At power-on,
at RESET, at
STOP RUN
state
3685H Parameter error
(safety function)
• Passive is selected for the open
system in the safety
communication setting when the
operation mode of the CPU
module is redundant mode.
Stop • Check the detailed information
(parameter information) of the error by
executing module diagnostics using
the engineering tool and correct the
parameter settings corresponding to
the displayed parameter number. Then,
select Active for the open system of the
safety communication setting.
Parameter
information
At power-on,
at RESET
3690H Parameter error
(safety function)
• The corresponding Safety CPU
does not exist.
• Multiple control CPUs were
detected.
Stop • Remove the safety function module.
• Use a control CPU for a single Safety
CPU. If the same error code is
displayed again, the possible cause is
a hardware failure of the Safety CPU,
safety function module, or base unit.
Please consult your local Mitsubishi
representative.
At power-on,
at RESET
36A0H Parameter error
(safety function)
• A value exceeding the maximum
number of safety programs to be
executed is set in the program
settings.
Stop • Correct the number of safety programs
so that it is within the maximum
number to be executed.
Parameter
information
At power-on,
at RESET
36A1H Parameter error
(safety function)
• A value exceeding the maximum
number of safety FB files to be
executed is set in the FB/FUN file
settings.
Stop • Correct the number of safety FB files
so that it is within the maximum
number to be executed.
Parameter
information
At power-on,
at RESET
36C0H Safety operation
mode switching
error
• An attempt was made to change
the CPU operating status to RUN
when the safety operation mode is
SAFETY MODE (wait-for-restart).
Stop • Reset the CPU module and run it
again.
Always
36E1H File error • Safety programs and safety FB
files, that the data writing to the
programmable controller did not
complete successfully, exist.
• Some safety programs and safety
FBs are not in the normal state.
Stop • Write safety programs and safety FBs
to the programmable controller again
and check that the data writing has
completed successfully. Then, reset
the CPU module. If the same error
c
ode is displayed again, the possible
cause is a hardware failure of the CPU
module. Please consult your local
Mitsubishi representative.
Drive/file
information
At power-on,
at RESET, at
STOP RUN
state
3700H System
consistency
check error
(system
configuration)
• The module mounting status of
each slot or the module model
names differ between the systems
A and B.
• The module model names set in
the system parameters ("I/O
Assignment Setting") differ
between the systems A and B.
(The error is detected in the control
system or the standby system.)
Stop • Match the module mounting status of
each slot and the model of the modules
used between the systems, and restart
the CPU module.
• Set the same module model name in
the system parameters ("I/O
Assignment Setting") for both systems.
System
configuration
information
At power-on,
at RESET, at
system
switching
execution, at
tracking cable
connection
Error
code
Error name Error details and cause Stop/
continue
Action Detailed
information
Diagnostic
timing
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