GE DS200KLDBG1A DS200KLDBG1AAA Display Keypad Board

Key Technical Specifications

This GE DS200KLDBG1A DS200KLDBG1AAA board operates from a 24V DC power supply. It provides 16 membrane keys and LCD display interface for operator control. The unit measures 19 cm in length, 14 cm in width, and 3.5 cm in height. Its total weight equals 0.5 kg without any packaging materials.

The GE DS200KLDBG1A DS200KLDBG1AAA includes 16 tactile keys arranged in a 4×4 matrix. Additionally, it features one 16-pin ribbon connector for LCD data. A single 6-pin terminal block connects the DC power input. The board contains 16 key switches, 1 LCD driver, 1 keypad encoder, 4 status LEDs, 8 resistors, and 6 capacitors.

Parameter	Value
Power Supply	24V DC ±10%, 100mA
Number of Keys	16 membrane type
Key Matrix	4 rows x 4 columns
LCD Type	Character (16×2 or 20×4)
Dimensions (L x W x H)	19 cm x 14 cm x 3.5 cm
Weight	0.5 kg
LCD Interface	16-pin ribbon header
Key Scan Method	Matrix scanning
Debounce Time	20 ms (hardware)
Status LEDs	4 units (green)
Power Connector	6-pin terminal block
Key Switches	16 units (tactile, 100k cycles)
LCD Driver	1 unit
Keypad Encoder	1 unit
Resistors	8 units
Capacitors	6 units
Energy Storage	22 µF at 35V

GE DS200KLDBG1A DS200KLDBG1AAA stores energy using one electrolytic capacitor. This capacitor provides 22 µF at 35V rating for key debounce filtering. Consequently, the board prevents false key readings during 10 millisecond power fluctuations. Therefore, operator inputs remain accurate in noisy industrial environments.

Design and Integration

Both the GE DS200KLDBG1A and DS200KLDBG1AAA versions share identical keypad circuitry. These boards use two-layer PCB construction with ESD protection diodes on all key inputs. Consequently, the GE DS200KLDBG1A DS200KLDBG1AAA operates reliably from -10°C to +55°C ambient temperature.

For installation, you need M3 screws for the four mounting holes. The board draws 80 mA typical current from the 24V DC supply. The keypad interface sends scan codes to the host controller. We recommend mounting the board behind a sealed membrane panel for environmental protection.

Practical Application

This display keypad board provides local operator interface for drive and turbine systems. It reads key presses from the front panel and sends commands to the controller. The GE DS200KLDBG1A DS200KLDBG1AAA also drives an LCD screen for parameter display. Therefore, it enables local monitoring and configuration in GE industrial control panels.