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2-28 Chapter 2
GSE Scale Systems
•
It would not be possible to get an operator input on the 4X20 VFD
using the %G or %K commands.
•
Only a custom transmit directed out comm4 would allow
communication to the 4X20 VFD.
LCD C
ONTRAST
The contrast of the LCD changes with temperature. A contrast setting that
allows good viewing at a high temperature might make the display
impossible to read at a low temperature. This would make it difficult to
access P430 to change the contrast.
If the display is not visible at power-up you can adjust the contrast as
follows:
1. Power down.
2. Hold down the left, down and right arrow keys.
3. Power up.
4. Continue to hold the left, down and right arrow keys until you can see
the contrast adjustment menu on the display, then release.
5. Make fine adjustments to the contrast by pressing the up and down
arrow keys.
6. Press [ENTER] to exit the menu and permanently store the new
contrast setting.
K
C
EYPAD
ONFIGURATION
All 60 Series indicators are shipped with the keypad properly configured.
However proper keypad operation can not always be guaranteed when
installing a replacement main board due to the fact that some indicators
support multiple keypad styles. A keypad will not operate correctly when it
does not match the configuration of the main board. And since the keypad
does not operate correctly, it is impossible to use the conventional method
to access the setup mode and change P450 to the correct style keypad.
Instead, holding down various keys at power-up as described below will
automatically configure P450 to reflect the connected keypad.
460 K
EYPAD
If the keypad does not operate correctly at power-up, configure the keypad
as follows:
1. Power down.
2. Hold down the [ENTER] key.
3. Power up.
4. Continue holding the key until "
release.
A
DJUSTMENT
M460 Keypd
" is displayed, then
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