Troubleshooting; Led-Indicated Error Causes And Their Corrective Actions - Mitsubishi 800 Series User Manual

7 TROUBLESHOOTING

7. TROUBLESHOOTING
This section gives simple troubleshooting for use of the A8GT-J61BT15.
By setting the alarm list display (system alarm) function to the display screen using
the graphics software, the GOT can quickly detect a link error, in addition to the
following errors.
When a link error occurs, the following error code and error messages are
displayed in the display field of the alarm list display (system alarm) function.
For more details on how to set up the alarm list display (system alarm) function and
the contents of display, refer to the manuals listed in the table below.

7.1 LED-Indicated Error Causes and Their Corrective Actions

This section explains how to check errors indicated by the LEDs of the A8GT-
J61BT15.
For errors related to the PLC CPU and Master module, refer to the user's manuals of
the PLC CPU and Master module.
(1) If the L RUN LED of the A8GT-J61BT15 goes off
CC-Link dedicated cable is broken or
shorted.
Master station stopped link.
Station number was repeated.
GOT parameters have not been set.
Power is not supplied to the GOT or
voltage is insufficient.
Switch setting is outside the specified
range (station number 0 or 65 or more,
transmission speed 5 to 9).
7 - 1
POINT
Error code
• Communication disable (GOT800 Series)
402
• Communication time-out (GOT-A900 Series)
GOT Used
GOT-A900 Series GT Designer Help function
SW
GOT800 Series
Screen Creation Manual)
Cause
Get other manuals https://www.bkmanuals.com
Message
Manuals to refer to
NIW-A8GOTP Operating Manual (Monitor
Corrective Action
Check and repair the CC-Link dedicated cable.
Check for an error at the Master station.
Switch power on again 1 after correcting the station
number setting of the module of which station number
was repeated.
Correct the GOT parameter setting and switch power of
the GOT again 1.
Supply power to the GOT and check the voltage of the
power supply.
Correct the switch setting and switch power on
again 1.
MELSEC-GOT
7
7 - 1