Mitsubishi MELSEC iQ-F, User Manual

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9 TROUBLESHOOTING
9.3 List of Error Codes
Digital output value varies
Conversion completed flag does not turn on
9.3
List of Error Codes
If an error occurs during operation, a multiple input module stores the error code into 'Latest error code' (Un\G0) of the buffer
memory. In addition, 'Error flag' (Un\G69, b15) turns on. Turning on 'Error clear request' (Un\G70, b15) clears the error code in
'Latest error code' (Un\G0) and turns off 'Error flag' (Un\G69, b15).
Error codes of a multiple input module are classified in minor errors or moderate errors.
• Minor error: This error is caused by the setting failure of programs and parameters, and after eliminating the error cause,
each function normally executes. (1000H to 1FFFH)
• Moderate error: Hardware failures. The A/D conversion, and temperature conversion do not continue. (3000H to 1FFFH)
The following table lists the error codes that may be stored.
 : This symbol indicates the number of the channel where an error has occurred. A numerical value of 0 to 7 is used to
correspond to CH1 to 8.
(CH1: 0, CH2: 1, CH3: 2, CH4: 3, CH5: 4, CH6: 5, CH7: 6, CH8: 7)
 : For what this symbol indicates, refer to Description and cause of error.
Check whether the offset/gain setting is correct. Check that the offset/gain setting is correct. If the user range setting is used,
change to the factory shipment setting, and check that the conversion is
performed.
When the conversion is correct, perform the offset/gain setting again.
Check whether average processing specification is correct. Check the setting of average processing specification from the "Module
parameter setting" screen of GX Works3.
If the setting is different from the average processing you want to use, reset
the average processing specification from the "Module parameter setting"
screen.
Is an external input being made to a conversion disabled channel? Do not input to a conversion disabled channel from an external device.
Check item Corrective action
Check whether a conversion method other than sampling processing is set. Check the setting of average processing specification from the "Module
parameter setting" screen of GX Works3.
Review the setting of average processing specification and check the state of
variation of 'CH1 Digital output value' (Un\G400) again.
Check item Corrective action
Check whether all channels are set to be conversion disabled. Check the setting of input type with GX Works3.
If there is no channel other than conversion disabled, please set the input type
setting to one other than "Conversion disabled" for one or more channels from
GX Works3 or sequence program.
Error code Error name Description and cause Corrective action
0000H  There is no error. 
1080H Number of writes to offset/
gain settings reach limit error The number of the offset/gain settings has
exceeded the guaranteed maximum number. Any further setting of offset/gain values may not be
reflected correctly.
1090H Conversion enabled CH
combination unavailable
error In 2CH conversion mode, CH used for
conversion enabled CH number is out of
combination range. Reconfigure CH to the conversion enabled with the
correct combination for conversion enabled CH
number.
1861H Offset/gain setting
continuous write occurrence
error The setting value has been continuously written
to the flash memory 26 times or more in the
offset/gain setting. For the offset/gain setting, write the setting value
only once per setting.
190  H Input type/Range setting
range error • A value out of the range is set in CH  Input
type/Range setting.
• A value out of the range is set in CH

Range
setting (Offset/gain setting).
• Set CH  Input type/Range setting to the value
within the range again.
• Set 0 or 1 in CH  Range setting (Offset/gain
setting).
191  H Averaging process
specification setting range
error A value other than 0 to 3 is set in CH  Average
processing specification.
Set a value of 0 to 3 in CH  Average processing
specification again.
Check item Corrective action