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9.6.3
CC-Link LEDs
(1) When the RUN LED does not turn on
Has any hardware failure or watchdog timer error
occurred?
Is the startup mode switch still in the SET position
(key resetting)?
(2) When the L RUN LED does not turn on
Is the mode on the CC-Link IE Field Network side of
the bridge module online?
Is the mode on the CC-Link side of the bridge module
online?
Has any error occurred in the CPU module of the
master station?
(3) When the SD/RD LED does not turn on
Has any error occurred in the CPU module of the
master station?
Is the mode of the CC-Link remote station online?
Is the CC-Link dedicated cable normal?
(4) When the MST LED flashes or turns off
Is the bridge module under the unit test?
Is the bridge module under the CC-Link line test?
92
Check item
Check item
Check item
Check item
Corrective action
If the RUN LED does not turn on even after the module power
supply is tuned off then on, the possible cause is a hardware failure.
Please consult your local Mitsubishi representative.
Reset the startup mode switch from SET to the normal position.
Corrective action
Change the mode on the CC-Link IE Field Network side of the
bridge module to online.
Change the mode on the CC-Link side of the bridge module to
online.
If an error has occurred in the CPU module of the master station,
remove the cause of the CPU module error. ( User' s manual for
the CPU module used)
Corrective action
If an error has occurred in the CPU module of the master station,
remove the cause of the CPU module error. ( User' s manual for
the CPU module used)
Change the mode of the CC-Link remote station to online.
• Check the cable for disconnection, short circuit, incorrect wiring,
poor contact, and usage not meeting the specifications
(transmission distance, station-to-station distance, coexistence of
different types of cables, and FG connection).
• Check if a transmission cable other than a CC-Link dedicated
cable is used.
Corrective action
When the bridge module is under the unit test, completion of the
unit test turns on the D LINK LED on the CC-Link IE Field Network
side. Take a corrective action according to the result of the unit test.
( Page 101, Section 9.8)
When the bridge module is under the CC-Link line test, completion
of the CC-Link line test turns on the L RUN LED or the MST LED on
the CC-Link side. Take a corrective action according to the result of
the line test. ( Page 64, Section 7.2 (1))
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Table of Contents
Troubleshooting
