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4
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1. Communication error related
Fault diagnosis
《
Note
》
The meaning of the symbols below are as follows.
· Adaptor
Communication adaptor
· MAIN board MAIN board of communication adaptor
1. Communication error related
1-1. [C06] error appears on [Alarm list] screen
1
Detection method
If the Intelligent Controller cannot receive data from the communication adaptor board for a certain period of time
or longer, or if in an error is detected in the received data.
2
Diagnosis of failure
1. Communication
adaptor
(Power supply
system)
1-1
Is anything displayed on the 7-segment LED (6) on the board?
Yes 2-1
No 1-2
1-2
Is the power switch on the board ON?
Yes
1-3
No Turn ON
1-3
Is there a disconnection or open circuit in a connector on the
board?
· CN 5 (white 6P)
Yes Correct
wiring
No
1-4
1-4 (External adaptor only)
Is there a disconnection or open circuit in a connector on the
power supply board?
· CN1 (white 5P)
· CN2 (white 4P / 7P)
Yes Correct
wiring
No
1-5
1-5 Has the fuse (F1) of the board burned out?
Yes Replace the
fuse
No 2-1
2. Communication
adaptor
(Communication
system)
2-1
Is there a disconnection, looseness, an open circuit, or a short
circuit in the wiring of 11P or 12P [ADAPT] (RS485) of the 20P
terminal block CN2?
Yes Correct
wiring
No 2-2
2-2
Is the wiring polarity of 11P, 12P “ADAPT” (RS485) of the 20P
terminal block CN2 correct? (+, -)
Yes
3-1
No Correct
wiring
3. Construction /
settings related
3-1 Did you change the adaptor address settings since the
Intelligent Controller started?
Yes Undo or
check
configuration
No
3-2
3-2 Are the “LINK connect Yes/No” settings correct?
(See the “Display and settings on the communication adaptor
board” section)
Yes
3-3
No
Modify
settings
3-3 Is jumper plug CN032 of the communication adaptor at the end
of the crossover wiring set to “B” (with terminating resistance)?
* Built-in board of Intelligent Controller main body set to “B” (with
terminating resistance).
Yes
3-4
No
Set it to “B”
3-4 Is jumper plug CN032 of the communication board that's located
not
at the end of the crossover wiring set to “A” (with terminating
resistance)?
Yes
3-5
No
Set it to “A”
3-5 Are there any of the following types of deficiencies in the
construction of the communication adaptor control wiring?
· Power lines and bundled lines or running in parallel
· The total extension exceeds 1 km
· It is not crossover wiring (there is a branch point)
· Shielded wire is not used
· The shield is grounded on both sides or not grounded
Yes Reconstruct
properly
No
4
4. Replace the communication adaptor board for which there is an alarm
Or, replace the product main unit
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2017/04/06 10:42:40