11 TROUBLESHOOTING
11.2.11 Flowchart for when output module LED is not turned on
The following shows the flowchart to be followed when the output module LED does not turn on during PLC operation.
Output module LED not turned on
|
| NO (Flickering) |
|
|
| |||
Is the "MODE" LED on? |
|
|
|
|
| Refer to Section 11.2.3. |
| |
|
|
|
|
| ||||
| YES |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
| |
Is the LED on when it is |
|
| NO |
|
|
| ||
|
| Reexamine the program. |
| |||||
|
|
| ||||||
monitored on GX Developer? |
|
|
|
|
|
| ||
|
|
|
|
|
| |||
|
|
|
|
|
|
| ||
| YES |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
Check the input/output number on the GX Developer system monitor.
Does the output number match? | NO | ||
| |||
| YES |
| |
|
| ||
|
|
| |
Is the LED turned on | NO | ||
when another output module | |||
| |||
is forcibly turned on? |
| ||
| YES |
| |
|
| ||
|
|
| |
Is the LED turned
on when the output module is NO changed for another output module, 
which is then forcibly
turned on?
YES
Output module hardware fault. Please consult your local Mitsubishi service center or representative, explaining a detailed description of the problem.
Change the output number.
CPU module, base unit, extension Outputcable hardwaremodule hfardwareult. fault PleaseCon ultconsultyour localyoursystemlocal Mitsubishiservice, agenservicey centerorbranchor representative,office. explaining a detailed description of the problem.
11 - 10 | 11 - 10 |