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14. TROUBLESHOOTING
14.1 Troubles and Check Items
MELSEC-A
Check Item
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Trouble Description
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1
Monitor screen does not display.
0
0
0
0
0
0
0
0
2
Monitor condition display does not change
0
according to condition settings.
3
Indefinite data is displayed.
0
0
0
0
0
4
The system menu screen is not
0
0
0
0
0
displayed.
5
An error message is displayed.
0
0
0
6
G-controller module's RUN LED does not
0
come ON.
7
G-controlfer module's KEY -IN LED does not
0
0
come ON.
8
Gccontroller module's M-CARD LED does not
0
come ON.
g
LEOs on the operation panel do not come ON.
0
0
0
0
0
10
Data cannot be keyed in.
0
0
0
0
Data entered through the operation panel or
11
touch panel cannot be read by a sequence
0
0
0
0
program.
12
Data cannot be printed.
0
0
0
0
0
13
Indefinite data is printed.
0
0
See Section
14.2
14.3
14.4
14.4
14.4
14.5
14.5
14.6
0: Check required
14-2
•
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