Self-Diagnosis Function; Status Display Led Of The Control Unit - Panasonic FP-XH M8N16PD User Manual

Troubleshooting

20.1 Self-diagnosis Function

20.1.1 Status display LED of the Control Unit

• When an error occurs in the embedded control unit, judge the current situation and stop the
running self-diagnosis function as needed.
• When an error occurs, the status display LED of the control unit is as shown in below table.
 Self-diagnosis related LED display
LED display
RUN
○
×
Normal
△
○
Excepti
×
on
○: ON, △: Blink, ×：off, －: on or off
－
20-2
PROG. ERR.
× ×
○ ×
△
×
△
△
×
○
○ ○
Description
In normal operation
Prog mode
In prog mode, even if forcible output is
performed, LED does not blink.
In RUN mode, during forcible input/output,
RUN and PROG. LEDs will blink one by one.
Self-diagnosis error (in operation)
Self-diagnosis error (being stopped)
System monitoring timer stops working
Run
Run
Stop
Run
Run
Stop
Stop