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8-5 Troubleshooting
♦ System connection check flow
Start
Check
whether the connectors and cables are con-
nected correctly.
Turn on the power supply.
Does RUN LED turn ON?
Does NORM/ERR (red) turn
ON?
Connect the programming console.
Does the display work?
Input the password.
Do the key switch and display
match?
8-6
Connect them correctly.
whether the specified volt-
age is supplied.
Does reset input turn ON?
Replace the controller with
another one.
Check
Supply the specified voltage.
Turn OFF reset input.
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