This section assumes that the FP is the cause of a problem,
not the host (PLC). When the host is the problem, please
refer to that device's manual.
• Because of the danger of an electric shock, be sure the power cable is not
connected when wiring the unit.
• When changing the backlight, since there is a danger of an electric shock
or burn, be sure to turn the FP off and wear gloves.
Chapter 5
Troubleshooting
1. Troubleshooting
FP-770T User's Manual
5-1
Warning
5-1
Troubleshooting
5-1-1 Possible Device Problems
Two possible types of trouble are as follows.
•
No display
- No display appears after the unit is switched on.
- The screen disappears during RUN mode.
- The screen display is not normal.
•
Touch panel doesn't respond
The touch panel does not react when pressed, or its reaction time is
abnormally slow.
Troubleshooting procedures for these problems are described in the flowcharts
on the following pages.
!!!!!
Important