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3.3 Trouble Shooting
3.3.2
CTB23 Circuit Board
Check mechanical operation,
and repair or replace.
Turn off power supply, check for short-circuit
of fuse system and repair if necessary.
Repair or replace harness.
Restart system.
Replace CTB23 circuit board.
Repair or replace harness.
Replace CTB23 circuit board.
Use “I/O Check (0341)” to check sensor
and motor. Motor driven?
On “I/O Check (0341)”, other output
system normally operated?
Check if there is a connection error or
disconnection of harness between CTB23
circuit board and sensor.
Replace sensor.
Solved?
Replace motor.
Solved?
Check if there is a
connection error or disconnection of harness
between CTB23 circuit board and sensor.
Fuse F51 or F52 on CTB23
circuit board burnt out?
END
END
(+24V)
Come-off or
abnormal sound
Sensor abnormal.
Motor not driven.
Operated not at all
Other operated
Only same CP
system not operated
Not
burnt out
Burnt out
Malfunction
Normal
Solved
Not solved
Malfunction
Normal
Solved
Not solved