Mitsubishi Electric NZ2GFSS2 32D S1 User Manual page 143

Error code Safety error subset code
(hexadecimal)
Error
classification
*1
0207H 450
*1
0208H 450
020AH 450
Classification
Error item
number
(hexadecimal)
0207H Minor error
0208H Minor error
020AH Minor error
Recoverable
Error name Description and
cause
Output read- A discrepancy of an
back error output read-back
value and an output
value was detected.
Output dark test During an output
error dark test, test
pulses were not
detected.
Safety module The safety module
validation failure validation failed.
Action
• Match the ON timing of the
external power supply with the
ON timing of the module power
supply.
• Review the connected devices
and wiring.
• Check that 24V is supplied to the
external power supply using a
tester.
• Check that the external
connection is not overloaded.
• When the connected devices
and wiring have no errors, there
may be an influence from noise
or a hardware failure. Take
measures to reduce noise.
• If the same error occurs again,
the module may be in failure.
Please consult your local
Mitsubishi representative.
• Match the ON timing of the
external power supply with the
ON timing of the module power
supply.
• Correct the parameter settings
of "Output dark test pulse OFF
time" and "Number of pulse
output for output dark test".
• Review the connected devices
and wiring.
• Check that 24V is supplied to the
external power supply using a
tester.
• Check that the external
connection is not overloaded.
• When the connected devices
and wiring have no errors, there
may be an influence from noise
or a hardware failure. Take
measures to reduce noise.
• If the same error occurs again,
the module may be in failure.
Please consult your local
Mitsubishi representative.
• Check that no error other than
"Safety module validation
failure" has occurred on the
module using the ERR. LED of
the module and error history. 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.
10 TROUBLESHOOTING
141
10.7 List of Error Codes
10