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10 TROUBLESHOOTING
10.7 List of Error Codes
0203H
*1
Minor error Double input
discrepancy detection
error A double input discrepancy was
detected in a pair of inputs (X0
and X1, X2 and X3, ...). • Power on the external power supply at the same
timing of power-on of the module power supply.
• Correct the parameter settings of "Double input
discrepancy detection time".
• Review the connected devices and wiring.
• When the connected devices and wiring have no
errors, there may be an influence from noise. Take
measures to reduce noise.
• If the same error occurs again, the module may be in
failure. Please consult your local Mitsubishi
representative.
• When "Double input discrepancy auto recovery
setting" is set to "1: Used", the module will recover
from this error after the double input discrepancy is
eliminated.
0204H
*1
Minor error Input dark test error During an input dark test, test
pulses were not detected. • Power on the external power supply at the same
timing of power-on of the module power supply.
• Correct the parameter settings of "Input dark test
pulse OFF time" and "Number of pulse output for
input dark test".
• Review the connected devices and wiring.
• When the connected devices and wiring have no
errors, there may be an influence from noise. Take
measures to reduce noise.
• If the same error occurs again, the module may be in
failure. Please consult your local Mitsubishi
representative.
0205H Minor error Safety module
validation failure The safety module validation
failed. • The module will automatically recover immediately
after the error occurs.
• Check the module's ERR. LED and error history to
see if a moderate error due to parameter settings has
occurred in the module. If an error has occurred,
eliminate the cause.
• If the same error occurs again even after "Safety
module validation" is executed in no error state, the
module may be in failure. Please consult your local
Mitsubishi representative.
0206H Minor error Safety module
validation not
performed The safety module validation has
not been performed. • Perform "Safety module validation". After performing
safety module validation, safety communications can
be performed by restarting the module.
• If the same error occurs again, the module may be in
failure. Please consult your local Mitsubishi
representative.
0208H Minor error Non-volatile memory
data error
(communication
speed information) An error of the communication
speed information stored in a non-
volatile memory was detected. • Take measures against noise with a shielded cable for
connection.
• If the same error occurs again, the module may be in
failure. Please consult your local Mitsubishi
representative.
0270H Minor error Remote reset disable
error Remote reset could not be
performed because the
communication speed setting of
the parameter is different from the
setting it had when the module
power supply was powered on. Power off and on the module power supply.
0500H
*1
Moderate error Parameter data error An incorrect value or parameter
data out of the range is set. • Correct the module parameter settings and module
configuration.
• When the parameters are set again and the
parameter setting has succeeded, the module will
recover from this error.
0560H
*1
Moderate error Parameter data error
(wiring selection of
input) An incorrect value or parameter
(wiring selection of input) out of
the range is set. • Correct the module parameter settings (wiring
selection of input) and module configuration.
• When "0: Not used", "2: Safety single", or "3: General
single" is set to Xn (n: even number) in "Wiring
selection of input", set a value other than "1: Safety
double wiring (NC/NC)" for Xn+1.
• When the parameters are set again and the
parameter setting has succeeded, the module will
recover from this error.
Error code
(hexadecimal) Classification Error name Description and cause Action