Mitsubishi Electric MELSEC iQ-R Series User Manual page 205

6.
Set the BUS RESET/Y STOP/Y OUT switch to the Y OUT position.
The bus access diagnostics is performed.
The OS LED flashes in green during the diagnostics.
7.
Check the LED statuses.
• When the bus access diagnostics is completed normally, the OS LED turns ON in green.
• When the bus access diagnostics is completed with an error, the ERROR LED flashes in red.
If the bus access diagnostics is completed with an error, turn the power of this product OFF and perform the diagnostics
again.
If it is completed with an error again, a hardware failure may occur in this product. Please contact your local Mitsubishi Electric
sales office or representative.
8.
Turn the power of this product OFF.
26 BUS ACCESS DIAGNOSTICS FUNCTION
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