Panasonic FP-XH Series User Manual page 126

8.1 Self-diagnosis Function
8.1 Self-diagnosis Function
8.1.1 Operation Monitor LEDs of Control Unit
● The Control Unit has a self-diagnostic function which identifies errors and stops operation if
necessary.
● When an error occurs, the status of the operation monitor LEDs on the Control Unit vary, as
shown in the table below.
■
LEDs related to self-diagnostic errors
RUN
ON
OFF
In normal
condition
Flashes
ON
In
abnormal OFF
condition
OFF
8.1.2 Operation Mode When an Error Occurs
● Normally, when an error occurs, the operation stops.
● For some errors, the user may select whether operation is to be continued or stopped by
setting the system registers.
■
"PLC Configuration" dialog box of FPWIN GR7
To specify the steps to be taken by the FPWIN GR7 if a PLC error occurs, select Option
(O)>PLC System register settings from the menu bar, and click on the "Action on Error" tab.
The screen shown below is displayed.
8-2
LED display
PROG. ERR.
OFF OFF
ON OFF
Flashes OFF
OFF Flashes
ON Flashes
ON ON
Description
Normal operation
Program mode
LED does not flash even if the forcing output
is performed in program mode.
Forcing input/output in Run mode
"RUN" and "PROG." LEDs flash alternately.
Self-diagnostic error (During operation)
Self-diagnostic error (During stop)
System watchdog timer has been activated
Operation
status
Operating
Stop
Operating
Operating
Stop
Stop
WUME-FPXHPOSG-01