Checking The Module Status (Self-Loopback Test) - Mitsubishi Melsec-A AJ65SBT User Manual

6 TROUBLESHOOTING

6.8 Checking the Module Status (Self-loopback Test)

PW
When normal On
On
When faulty On
On
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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.
Check whether the individual module will operate normally or not.
Execute the test in the following procedure.
Connect the CC-Link/LT side cable and supply
24V DC from the dedicated power supply or
power supply adapter.
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.
LED Displays
L RUN L ERR.
On Off
Off On
Off Off
Off Off
Start
Power on.
End
ERR.
Off
Off Change the module because of hardware fault.
Off
On Reset the operation setting switch setting.
MELSEC-A
Corrective Action
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