Omron V680S-HMD63-PNT User Manual page 209

 System Errors
 CPU Error or Hardware Fault
RUN
Lit green or fast
flashing green
 System Memory Error
RUN
Flashing green
NORM/ERR
Take the appropriate action referring System Errors in this Section
Replace the Reader/Writer if the condition does not change.
p.210
Lit red
NORM/ERR
Take the appropriate action referring System Errors in this Section
Replace the Reader/Writer if the condition does not change.
p.210
* If the Reader/Writer detects a fault, the Reader/Writer will start in the " Safe
Lit red
mode" automatically.
Troubleshooting
Processing when error occurs
Processing when error occurs
Section 9
RFID System
207
User's Manual
(PROFINET)