Mitsubishi Electric MELSEC iQ-F FX5 Series User Manual page 128

When the L ER LED turns on
When the L ER LED turns on, check the following.
Check item
Are the Ethernet cables used normally?
Is the switching hub used operating normally?
Is "Module Operation Mode" under "Application Settings" of the master station
set to "Online"?
Is there any source of noise near the module or cables?
When the LINK LED turns off
When the LINK LED turns off, check the following.
Check item
Do the used Ethernet cables conform to the Ethernet standard?
Does the station-to-station distance meet the specifications?
Does the cabling condition (bending radius) meet the specifications?
Is any Ethernet cable disconnected?
Is the switching hub used operating normally?
Are other stations connected to the Motion module operating normally?
Does the communication speed of the connected device match the
communication speed set in "Communication Speed"?
Is the communication speed of connected devices 1 Gbps?
If the communication speed is set to 100 Mbps for the master station to
connect a device with a communication speed of 100 Mbps, is the auto-
negotiation of the connected device valid?
8 TROUBLESHOOTING
126
8.1 Checking with LED
Action
• Use an Ethernet cable that conforms to the standard. (Page 20
Performance Specifications of CC-Link IE TSN)
• Set the station-to-station distance within range. (Page 20 Performance
Specifications of CC-Link IE TSN)
• If the Ethernet cable is disconnected, reconnect it.
• Use a switching hub that conforms to the standard. (Page 20
Performance Specifications of CC-Link IE TSN)
• Power off and on the switching hub.
Set "Module Operation Mode" under "Application Settings" of the master
station to "Online".
Change the location of the module or cables.
Action
Replace the cables with Ethernet cables which conform to the standard. For
details, refer to "WIRING" in the following manual.
MELSEC iQ-F FX5 Motion Module/Simple Motion Module User's Manual
(Startup)
Set the station-to-station distance within range. (Page 20 Performance
Specifications of CC-Link IE TSN)
Refer to the manual for the Ethernet cable, and correct the bending radius.
Replace the Ethernet cable.
• Use a switching hub that conforms to the standard. For details, refer to
"WIRING" in the following manual.
MELSEC iQ-F FX5 Motion Module/Simple Motion Module User's
Manual (Startup)
• Power off and on the switching hub.
Take action by referring to the manual for the modules of other stations.
Connect the device with the communication speed set in "Communication
Speed".
Connect devices that support a communication speed of 1 Gbps.
Enable the auto-negotiation of the connected device.
Or, connect a device with auto-negotiation enabled.