– 58 –
Troubleshooting (Continued)
Check code
Check code name
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