User manual

Problem
Cause
Solution
Screen is dim 1) The power voltage may be low. 1) Check the capacity of the power supply unit if it is
enough for the GT’s power consumption.
2) The contrast is set too low.
2) Bring up the system menu and adjust the contrast.
3) The backlight is off due to the
[Backlight Auto-off] setting in the
[Setup] of the GT configuration
settings in GTWIN.
3) Touching any area of the screen lights that area. If a
switch part is set on the touched area, the area will
not light even if touched. To change the setting,
change the content of the backlight auto-off
settings.
Backlight goes
off too quickly
1)The backlight auto-off timer setting
is too short.
1) Change the backlight auto-off timer setting.
Date/time
display is
incorrect
(when using the
GT’s internal
clock)
1) The GT’s internal clock used as a
reference is incorrect.
1) Adjust the clock from the system menu.
2) No battery has been inserted.
2) Purchase a battery and install it.
3) The battery has run down. 3) Replace the battery.
Date/time
display is
incorrect
(when using the
PLC’s internal
calendar timer)
1) The PLC’s internal calendar timer
used as a reference is incorrect.
1) Adjust by rewriting the value in the PLC’s internal
calendar timer.
Hold PLC
Device data
content isn’t
saved
1) No battery has been inserted. 1) Purchase a battery and install it.
2) The battery has run down.
2) Replace the battery.
Date/time
display is
incorrect
1) The PLC’s internal calendar timer
used as a reference is incorrect.
1) Adjust by rewriting the value in the PLC’s internal
calendar timer.
Touch panel
doesn’t work
1) Valid conditions have been set for
the switch part, but those
conditions have not been met.
1) Check that the device status conditions on the PLC
side are valid.
No operating
sounds are
heard when the
touch panel is
pressed.
(Except GT02L)
1) The [Switch Sounds] setting under
[Options] in the switch part
attributes is set to [Disabled].
1) Change the setting to [Enabled].
2)The [Touch Sounds] setting under
[Setup] in the GT configuration
settings in GTWIN is set to
[Disabled].
2) Change the setting to [Enabled].
Nothing
happens for
about 10
seconds after
turning on
power.
Communication conditions of GT
(COM port) and PLC differ.
Verify communication settings of GT and PLC and
then make them the same.
5-6