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18. TROUBLESHOOTING
18.1 GOT Restoration Sheet
(4) GOT restoration procedure
Follow the procedures below starting from (a) and in order to check if the GOT is restored.
If the GOT is not restored, proceed to the next item.
*1 When powering the GOT ON again (OFF ON), power OFF the PLC before that.
(5) Troubled product investigation
When malfunction of the GOT is not improved, please contact your local Mitsubishi (Electric System) Service.
Depending on the problem details, we may ask you to return the troubled product to us.
In that case, please attach the GOT status check sheet, GOT installation status check sheet, and the system
configuration check sheet filled out with details of your system.
Check item Cause Action
(a) Press the GOT reset switch.
Restored
Not restored (Proceed to (b).)
The GOT may have malfunctioned
temporarily due to noise.
Take the action of (4)-(h).
(b) Power the GOT ON/OFF.
*1
Restored
Not restored (Proceed to (c).)
(c) Reset or power ON/OFF the PLC
CPU.
Restored
Not restored (Proceed to (d).)
(d) Power the GOT and PLC CPU ON/
OFF simultaneously.
Restored
Not restored (Proceed to (e).)
(e) Connect the cable again.
Restored
Not restored (Proceed to (f).)
The cable connection may be faulty.
Securely connect the cable.
If an error occurs again, proceed to (5)
Troubled product investigation.
(f) Reinstall the project data.
Restored
Not restored (Proceed to (g).)
Data may have been destroyed by an
action such as powering the GOT OFF
during the installation of project data or
OS.
Do not power the GOT OFF while
transferring data.
If an error occurs again, proceed to (5)
Troubled product investigation.
(g) Reinstall the OS.
Restored
Not restored (Proceed to (h).)
(h) Take the action described in the
"Action" column.
Restored
Not restored (Proceed to (i).)
The GOT may have malfunctioned
temporarily due to noise.
Take the action with referring to GOT
installation status check sheet.
(i) The GOT is not restored even by
performing (a) to (h).
-
Proceed to (5) Troubled product
investigation.