Mitsubishi Electric GOT SIMPLE GS2107-WTBD, Руководство пользователя

Страница: 273 / 292

22.1 GOT Restoration Sheets
22 - 3
22
TROUBLESHOOTING
(2) Status where the GOT screen is frozen (When the screen operation stops)
(3) PLC CPU status
Phenomenon Cause/Status Corrective action
(a) Switching to the utility
Enabled
Error code (system alarm):
( )
Example: 460 Communication unit error
When the system alarm display function can
be used, take corrective actions for the
displayed error code (system alarm).
Otherwise, go to (2)-(b).
Disabled
The system alarm display function cannot be
used.
Go to (2)-(c).
(b) I/O check with the utility of the GOT
Communication fault
Display contents:
( )
Example: A message that indicates the possible
cause is a connection failure is displayed.
Go to (2)-(c).
No error
Hardware such as the communication interface
has no error.
Go to (3) PLC CPU status.
(c) Objects that are not displayed on the monitor screen
Exists
Detail:
( )
Example: The numerical display is not displayed.
Go to (3) PLC CPU status.
None
Phenomenon Cause/Status Corrective action
(a) PLC error
Always
The possible cause is CONTROL-BUS. ERROR,
SP. UNIT LAY. ERROR, or other errors.
Error code (system alarm):
( )
Example: 1204 CPU H/W fault
Go to the following.
➠
22.1
Sometimes
The possible cause is noise or a hardware failure.
Frequency:
( )
Example: Once a month
Error code (system alarm):
( )
Example: 1204 CPU H/W fault
Go to (4) GOT restoration procedure.
Normal operation
-