Digital UnderVoltage Relay (GDR-D01) User's Manual V1.10
Kyongbo Electronics Co., Ltd.
【Figure 5.1】 Front-side Display
5. Display Panel Construction
5.1 Front-side Display Panel Structure
The front-side display panel has 20 x 4 LCD, 4 LEDs, 7 KeyPad, and RS-232C
Communication Connector as follows. There is a transparent cover on the front-side
to prevent dust or foreign substance from entering and to stop unnecessary key
operations. When changing the setting value, it is required to input password to
prevent unauthorized user other than designated person to change the setting, and the
protection function is still operational during the inquiry through LCD.
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