Mitsubishi Electric MELIPC MI5000 Series User Manual page 204

The LEDs of CC-Link IE Field Network are on, flashing, or off
Check the following items.
If the RUN LED is off
Check item
Is the RUN LED turned off?
If the ERR LED is off or flashing
Check item
Is the ERR LED flashing?
Is the ERR LED on?
If the D LINK LED is off or flashing
Check item
Is the master station operating correctly?
Does the used Ethernet cable meet specifications?
Is the distance between stations within specifications?
Is the installation situation (bend radius) within specifications?
Is the Ethernet cable broken?
Are 121 or more slave stations connected?
Is the switching hub being used operating correctly?
Is the station No. duplicating that of another station?
In CC-Link IE Field diagnoses, are there any slave stations that are not data
linked?
When the L ERR LED turns on
Check item
Does the used Ethernet cable meet specifications?
Is the switching hub being used operating correctly?
Is the station No. duplicating that of another station?
In CC-Link IE Field diagnoses, are there any slave stations that are not data
linked?
Are there any sources of noise around the product, the stations, and wiring?
APPX
202
Appendix 1 Troubleshooting by Symptom
Corrective action
• Check the error code in MI Configurator and handle in accordance with the
error code. ( Page 220 List of Error Codes)
• Reset this product, and check whether the RUN LED of the CC-Link IE Field
Network turns on. If the LED does not turn on, this may indicate a hardware
fault. Consult your local Mitsubishi representative.
Corrective action
• Check the error code in MI Configurator and handle in accordance with the
error code. ( Page 220 List of Error Codes)
• Reset this product, and check whether the RUN LED of the CC-Link IE Field
Network turns on. If the LED does not turn on, this may indicate a hardware
fault. Consult your local Mitsubishi representative.
Check the error code in MI Configurator and handle in accordance with the
error code. ( Page 220 List of Error Codes)
Corrective action
Check that the master station is data linked by the 'baton pass status of own
station' (SB0047) and 'own station data link status' (SB0049).
Use Ethernet cables that meet the following standards.
Ensure the distance between stations is within specifications.
Set the bend radius within specifications.
Replace the Ethernet cable.
Ensure no more than 120 slave stations are connected.
• Check that a switching hub that meets specifications is being used.
• Turn the switching hub power supply OFF/ON, and restart the switching
hub.
Change the station No. of the duplicated station.
• Check the operating status of slave stations that are not data linked.
• Correct the CC-Link IE Field Network Parameters of the product, and of
slave stations that are not data linked.
Corrective action
Use Ethernet cables that meet the following standards.
• Check that a switching hub that meets specifications is being used.
• Turn the switching hub power supply OFF/ON, and restart the switching
hub.
Change the station No. of the duplicated station.
• Check the operating status of slave stations that are not data linked.
• Correct the CC-Link IE Field Network Parameters of the product, and of
slave stations that are not data linked.
Change the locations and wiring of modules.