Mitsubishi Electric MELSEC iQ-R Series User Manual page 125

When the PN RUN LED turns off
When the PN RUN LED turns off, check the following.
Check item
Is 'Data exchange start request' (Un\G17000.0) off?
Is 'Module status' (Un\G17118 to Un\G17119) as follows?
• 'Parameter setting status' (Un\G17118.0) is on.
• 'Module error' (Un\G17119.0) is off.
When the PN ERR LED turns on
When the PN ERR LED turns on, check the following.
Check item
Is a value other than 3030H stored in 'Module error details' (Un\G17169)?
Is a value stored in 'IO device error details' (Un\G21858 to Un\G21921)?
When the PN ERR LED is flashing
When the PN ERR LED is flashing, check the following.
Check item
Is a value stored in 'IO device error details' (Un\G21858 to Un\G21921)?
Is the wiring of PROFINET correct?
Are the IO device names correct?
Is the setting of the IO device correct?
When the DIA LED turns on
When the DIA LED turns on, check the following.
Check item
Is an alarm received from the IO device?
Action
Turn on 'Data exchange start request' (Un\G17000.0).
• When 'Parameter setting status' (Un\G17118.0) is off, the parameter is
corrupted or the incorrect parameter type is set. Set the parameter again
and restart the RJ71PN92.
• When 'Module error' (Un\G17119.0) is on, the possible cause is a hardware
failure of the RJ71PN92. Please consult your local Mitsubishi
representative.
Action
Check 'Module error details' (Un\G17169) and take actions. ( Page 151
Module error details (Un\G17169))
Check 'IO device error details' (Un\G21858 to Un\G21921) and take actions.
( Page 152 IO device error details (Un\G21858 to Un\G21921))
Action
Check 'IO device error details' (Un\G21858 to Un\G21921) and take actions.
( Page 152 IO device error details (Un\G21858 to Un\G21921))
Check if the wiring of PROFINET is correct.
• Check if the names of the IO devices set in the PROFINET module setting
and the names of the IO devices actually connected are matched.
• Check if the names of the IO devices set in the PROFINET module setting
are not overlapped.
Refer to the user manuals of the IO device.
Action
Obtain information of the received alarm and check the details. ( Page 49
Alarm Acquisition Function)
5 TROUBLESHOOTING
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5.1 Checking with LED
5