Mitsubishi Electric R60AD8-G - Page 319

14 TROUBLESHOOTING
14.5 Troubleshooting SIL2 Diagnostic FB Library
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For C001H
If a double input discrepancy detection error (error code: 1EDH) occurs in the R60AD8-G (Main), take
actions described as follows.
When a double input discrepancy detection error occurs
For C002H
If an A/D conversion circuit diagnostic error (error code: 1EFH) occurs in the R60AD8-G (Main), take actions
described as follows.
When an A/D conversion circuit diagnostic error occurs
For C010H to C021H
For C030H
Check item Corrective action
Check whether the setting values of standard/safety shared labels used in the
SIL2 safety program FB and SIL2 standard program FB are correct.
Check that the standard/safety shared labels used in the SIL2 safety program
FB and the SIL2 standard program FB match.
Check whether the module parameter "SIL2 A/D conversion cycle setting" of
the R60AD8-G is correct.
Check that "SIL2 A/D conversion cycle setting" is within the setting range.
Also check that the parameter satisfies the setting value calculation formula.
For details, refer to the following.
Page 277 "SIL2 A/D conversion cycle setting"
Check item Corrective action
Check whether the setting values of standard/safety shared labels used in the
SIL2 safety program FB and SIL2 standard program FB are correct.
Check that the standard/safety shared labels used in the SIL2 safety program
FB and the SIL2 standard program FB match.
Check whether the module parameter "SIL2 A/D conversion cycle setting" of
the R60AD8-G is correct.
Check that "SIL2 A/D conversion cycle setting" is within the setting range.
Also check that the parameter satisfies the setting value calculation formula.
For details, refer to the following.
Page 277 "SIL2 A/D conversion cycle setting"
Check whether i_bEN (execution command) of the SIL2 standard program FB
is turned on.
Turn on i_bEN (execution command) of the SIL2 standard program FB.
Check item Corrective action
Check whether the module parameters of the R60AD8-G are correct. Check that the module parameters of the R60AD8-G indicated by status code
are set within the setting range and the setting values are correct.
Check item Corrective action
Check whether the correct SIL2 safety program FB is used. Check that the SIL2 safety program FB (M+SIL2ADG_ADConv_R) has been
attached to the safety program. For details, refer to the following.
Page 256 Creating programs
If it is not attached correctly, the SIL2 analog input system does not operate
normally.