9 Troubleshooting
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9 Troubleshooting
This chapter is for possible errors in using LP-S044, for diagnosis method by several errors and
for troubleshootings.
No Error description
(Further details, refer to additional
1 Power LED turns OFF.
Troubleshooting in power LED turning
OFF.
2 Mode and status LED displays error. Troubleshooting in error status.
3 External input value has error. Troubleshooting in error for external input
4 External output value has error.
Troubleshooting in error for external
output
5
There is error for writing, reading, or monitoring
program.
Troubleshooting in communication
connection error.
(1) Troubleshooting in power LED turning OFF
Check as following list by number. If error is not solved, please notify this to our service
center.
No Check item Error
1 Is power supplied?
2 Is supplied power within the allowable voltage range?
3 Is the polarity of power line wiring correct?
4 Is there a problem to tighten power terminal?
(2) Troubleshooting in error status
Check item Error checking Troubleshooting
Program grammar
error
F0030, F0034 ON
Correct program grammar in SmartStudio and
re-download the program.
Time-driven
operation error
F0030, F0035 ON
Notify this to our service center.
Time setting error F0030, F0036 ON
Reset time setting.
(Refer to time setting and time compensation
function.)
Communication
error
F0030, F0038 ON
Refer to ‘(5) Troubleshooting in communication
connection error’ of next page.
I/O setting error F0030, F0039 ON Check extension module I/O setting.
WDT error F0030, F003A ON Restarts program.
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