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Possible causes
TCC-LINK central control
communication error
TCC-LINK central control communication error
[C05], [C06]
(Central controller)
Power ON.
Correct connector connection.
Correct com. cable.
Remove noise source.
Check central controller.
→ Replace it if necessary.
Check I/U boards.
→
Replace
defective board.
Confirm normal connection of
com. cable. Change connector
connection CN40 to CN44
(EMG) on I/U board.
Set the connected unit to
header unit.
Is I/U
powered ON?
Is harness from I/U
terminal block
connected properly?
Can I/U be
operated by R/C
individually?
Are U3/U4 com.
cables. normal?
*1
* Check wrong connection, disconnection, and
shield wire’s contact with com. cable.
When a unit
connected to U3/U4
is in a group, is it
set to header
unit?
Free from noise?
Is the code [C05]?
Is I/U onboard fuse
F03 normal?
Can other units
controlled by
central R/C? Is I/U
operating status
reflected?
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
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