Chapter 3 Troubleshooting; Checking With Led - Mitsubishi Electric RD78G4 User Manual

3
TROUBLESHOOTING
This chapter describes troubleshooting of CC-Link IE TSN.
3.1

Checking with LED

This section describes troubleshooting with the LEDs of the Motion module.
When the RUN LED turns off
When the RUN LED turns off after powering on the Motion module, check the following.
Check item
Is the Motion module mounted correctly?
When the ERR LED turns on or is flashing
When the ERR LED turns on or is flashing, check the following.
Check item
Does any error occur in the module
diagnostics?
Is a disconnected station displayed on the "CC-
Link IE TSN/CC-Link IE Field Diagnostics"
window?
When the D LINK LED turns off or is flashing
When the D LINK LED turns off or is flashing, check the following.
Check item
Is the master station operating normally?
Is the master station connected to the network?
Does the IP address of each station match the
"Network Configuration Settings" under "Basic
Settings" of the master station?
In the "Network Configuration Settings" under
"Basic Settings", are the third and fourth octets of
the IP address of the master station duplicated
with those of any other stations?
In the "Network Configuration Settings" under
"Basic Settings", does the network address
(subnet mask part) of the IP address of the master
station match that of other stations?
Are the third and fourth octets of the IP address set
to all 0 or all 1?
Is the host address of the IP address set to all 0 or
all 1?
Is a reserved address set to the IP address?
Do the used Ethernet cables conform to the
Ethernet standard?
Is the switching hub used operating normally?
Does the station-to-station distance meet the
specifications?
Does the cabling condition (bending radius) meet
the specifications?
Action
Securely mount the Motion module on the base unit.
Action
Take the actions displayed on the window.
• Correct "Network Configuration Settings" under "Basic Settings" of the master station in accordance with
the slave station actually connected.
• Perform troubleshooting for the disconnected station when the D LINK LED turns off or is flashing. (
Page 49 When the D LINK LED turns off or is flashing)
Action
• If an error has occurred in the CPU module on the master station, eliminate the cause of the CPU
module error. ( MELSEC iQ-R CPU Module User's Manual (Application))
• If an error occurs in the Motion module, take action according to the module diagnosis procedure. (
Page 52 Checking the Module Status)
Connect the master station to the network.
Correct the setting of the IP address in "Network Configuration Settings" under "Basic Settings" of the
master station.
• Set IP addresses in a way that does not duplicate the third to fourth octets of the IP address in all
stations.
• Set the IP address and subnet mask to match the network addresses of all stations.
• Set the third and fourth octets of the IP address to values other than all 0 or all 1.
• Set the host address of the IP address to values other than all 0 or all 1.
• Set an IP address other than a reserved address.
Replace the cables with Ethernet cables which conform to the standard. (MELSEC iQ-R Motion
Module User's Manual (Startup))
• Use a switching hub that conforms to the standard. (MELSEC iQ-R Motion Module User's Manual
(Startup))
• Power off and on the switching hub.
Set the station-to-station distance within range. (MELSEC iQ-R Motion Module User's Manual
(Startup))
Refer to the manual for the Ethernet cable, and correct the bending radius.
3 TROUBLESHOOTING
3.1 Checking with LED
3
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