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

ParameterDescription

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.

GEH-6385 Reference and Troubleshooting, 2300 V Drives

Chapter 3 Paramters/Functions 3-25

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GE Medium Voltage GP Type G Drives, 2300 V manual Keypad Contrast Adjustment, Keypad Meter Configuration