Omron V680S-HMD63-ETN - Page 242

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Section 9
Troubleshooting Flowcharts
RFID System
User's Manual
(Modbus TCP)
Section 9
Troubleshooting
System Connections Check Flowchart
START
Are the connector and
Cable connections OK?
RUN LED?
No
Yes
Power ON
Connect them correctly.
Lit green
Not lit
NORM/ERR LED?
Check the control
signal line connection.
Or initialize the settings.
Check the control
signal line connection.
Replace the Reader/Writer.
Lit redFlashing red
Not lit
NORM/ERR LED?
Replace the Reader/Writer.
Lit redFlashing red
Initialize the settings.
OK
No
Is the rated voltage
supplied?
Supply the rated voltage.
Not litFlashing green
Yes
Replace the Reader/Writer.