Section 10 Troubleshooting
10-2
Troubleshooting
10.1 Troubleshooting checklist
If you encounter difficulty with the controller, use the following checklist to solve the problem.
Check the operating state of the E5AR/ER as indicated by the display.
Error messages and indicators are explained in "10.2 Error messages"
(P.10-3). If an error message appears, refer to this section to solve the
problem.
Check switch settings and wiring
● Power supply
• Is the power turned on?
• Are the terminal voltages within the permitted ranges?
● Input type switch
• Is the switch set to the correct setting for the sensor you are using?
● Wiring
• Are the terminal connections correct?
• Are the polarities correct?
• Are any wires loose?
• Are any wires or cables broken or not making contact?
● Communication conditions
• Do the communication conditions match those of the host system?
If you are unable to identify the problem from the above or cannot
solve the problem, investigate in more detail.
• Are the setting data correct?
• Check for restrictions on the function you are using.
See if the cause of the problem lies in your settings.
If you were not able to identify the cause of the problem by checking
the above, refer to the tables in "10.2 Error messages" (P.10-3) and
following.
Check the display
Check switches
and wiring
Check setting data
Infer from conditions
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