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MELSEC-
6 TROUBLESHOOTING
POINT
(1) In the CC-Link/LT, "Reserved" and "Invalid" stations are not displayed.
(2) If the station number is duplicated, the operating status may be displayed in
"white".
Check the station number and the number of occupied stations for the CC-
Link/LT remote station displayed in "white", and make the correct setting to
eliminate the duplication.
6.8 Checking the Module Status (Self-loopback Test)
Check whether the individual module will operate normally or not.
Execute the test in the following procedure.
Start
Check prior to power-on
Confirm the input power supply voltage.
Set the operation setting switch (CC-Link/LT
side) SW3 of the AJ65SBT-CLB to "ON" to
select the test mode.
Power on.
Connect the CC-Link/LT side cable and supply
24V DC from the dedicated power supply or
power supply adapter.
End
LED Displays
PW L RUN L ERR. ERR.
Corrective Action
When normal On On Off Off
On Off On Off
On Off Off Off
Change the module because of hardware fault.
When faulty
On Off Off On Reset the operation setting switch setting.
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