Mitsubishi FX3UC Series, Руководство пользователя

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404
FX
3UC
Series Programmable Controllers
User’s Manual - Hardware Edition
12 Test Operation, Adjustment, Maintenance and Troubleshooting
12.7 FX3UC-32MT-LT Built-in CC-Link/LT Troubleshooting
12.7 FX
3UC
-32MT-LT Built-in CC-Link/LT Troubleshooting
12.7.1 Status of each station during abnormal operation
The table below shows the status of each station when an abnormal operation has occurred.
Holds the status.
Holds the ON/OFF status just before abnormality occurrence.
Continues the operation.
Executes the same operation as that in the normal status even if abnormality has occurred.
Clears.
Turns OFF inputs or outputs when abnormality has occurred.
• When monitoring a remote station and a program error occurs in the PLC, inputs on the monitoring device
may turn ON and OFF repeatedly. When the program error is cleared, inputs will return to their correct
state.
12.7.2 Operation at blowout of built-in power fuse for CC-Link/LT
A dedicated fuse is built into the built-in power supply circuit for CC-Link/LT. The system does not have a
function to detect a blown fuse, but the following abnormality occurs when the fuse is blown.
• Link error in all stations (BFM#29 b1)
• The power is turned OFF in a remote station that normally receives power from the main unit.
When the above abnormalities occur at the same time, the power fuse for CC-Link/LT may be blown out.
Consult a Mitsubishi Electric Distributor.
Data link status
Status of each station
Built-in master station Remote station
Remote input
Remote
output
Input Output
When an abnormality
has occurred in the
PLC, the PLC is
stopped.
(The data link in the
entire system is
continued.)
Program error - Clears.
Continues the
operation.
(Input LED is lit.)
Clears.
CPU error - Clears. Clears.
When a remote station becomes
abnormal (by data link error, etc.)
(The data link in the entire system is
continued.) Clears inputs from
a remote station in
the abnormal
status.
Continues the
operation.
Continues the
operation, but
disables data
transfer to the
master station.
(Input LED is lit.)
Depends on the
DIP switch
status.
When the power is interrupted in a
remote station
(The data link in the entire system
is continued.) Clears inputs from
a remote station
where the power is
interrupted.
Continues the
operation.
Depends on the
external signal. Turns OFF all
points.