- General Electric Computer Accessories User Manual

GEH-6385 Reference and Troubleshooting, 2300 V Drives Chapter 3 Paramters/Functions •
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• 3-25
Keypad Contrast Adjustment
Normally the LCD contrast of the Drive Diagnostic Interface (DDI) should be
adjusted at the DDI or keypad. The user can modify the Keypad contrast adj
parameter under the General Setup -> Keypad -> Keypad Functions menu.
A special keypad key sequence is also available to make this adjustment and is
especially useful when the contrast is too light or too dark to navigate the menus.
The sequence is to hold down the Menu key and press either the up (darker) or down
(lighter) arrow keys until the contrast is acceptable.
If your DDI firmware version is prior to V02.01.03C and the DDI contrast is too
light or too dark to navigate through the menus you will need to use Toolbox to find
the Keypad contrast adj parameter and make the adjustment.
Function configuration
Parameter Description
Keypad contrast adj Adjusts the contrast of the DDI LCD screen. Values are
from 0 to 63 where 63 is the darkest contrast. Setting
Keypad contrast adj to 0 will cause the DDI to adjust the
contrast to a middle value.
Note Once Keypad contrast adj has been modified in
the toolbox and then saved in the drive, a hard reset
must be performed for the user to see their modification
to the contrast reflected in the DDI.
Keypad Meter Configuration
The DDI Status screen has four animated meters and associated text that display
drive performance information.