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252
T
rou
blesho
o
ting F
lowchar
ts
Sect
ion 9
RFID System
User's Manual
(Modbus TCP)
Section 9
Troubleshooting
System Connections Check Flowchart
START
Are the connector and
Ca
b
le connections OK?
RU
N
LED?
N
o
Yes
Po
w
er O
N
Connect them correctly.
Lit green
N
ot lit
N
ORM/ERR LED?
Check the control
signal line connection.
Or initialize the settings.
Check the control
signal line connection.
Replace the Reader/
W
riter.
Lit red
Flashing red
N
ot lit
N
ORM/ERR LED?
Replace the Reader/
W
riter.
Lit red
Flashing red
Initialize the settings.
OK
N
o
Is the rated
v
oltage
s
u
pplied?
S
u
pply the rated
v
oltage.
N
ot lit
Flashing green
Yes
Replace the Reader/
W
riter.