Mitsubishi QJ71BR11 User Manual

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MELSEC-Q
4 SETUP AND PROCEDURES BEFORE STARTING THE OPERATION
(2) Starting the test
Set the STOP/RUN switch of the CPU module to STOP position. When resetting
the CPU module, use the RESET/L.CLR switch.
Perform this operation on the station to be tested first, then on the station to
execute the test.
3
4
5
STOP RUN
RESET L.CLR
3
4
5
STOP RUN
RESET L.CLR
3
4
5
STOP RUN
RESET L.CLR
Center RESET Center
CPU
module
(3) Checking the test result
The T.PASS LED of the network module flashes at approximately 0.5 s intervals.
The T.PASS LED flashes when the test is normal, and the ERR. LED flashes
when an error occurs.
[Normal test result]
RUN MNG
T.PASS D.LINK
SD RD
ERR. L ERR.
MNG
D.LINK
RD
L ERR.
Switch position
Display section
Before test
(during RESET)
Before test
(during STOP)
Test complete
Test is completed when
T.PASS flashes 20 times
(approximately 10 s).
RUN
T.PASS
SD
ERR.
[Abnormal test result]
RUN MNG
T.PASS D.LINK
SD RD
ERR. L ERR.
MNG
D.LINK
RD
L ERR.
Switch position
Display section
Before test
(during RESET)
Before test
(during STOP)
Test complete
Flashing of the ERR.
LED indicates an error.
Or L. ERR.
RUN
T.PASS
SD
ERR.
<Possible causes of errors>
A loopback was executed because of a wiring error, a faulty optical fiber cable or
abnormality was detected in other station.
1) If wiring is incorrect
Check the connections of IN and OUT connectors and other connectors. If
an incorrect connection is found, connect properly.
2) If an optical fiber cable is faulty or other station is abnormal
Replace the defective cable or module.

Mitsubishi QJ71BR11 Specifications

General

Brand	Mitsubishi
Model	QJ71BR11
Category	Controller
Language	English