Description

Professional Product Description: GE DS200KLDCG1A Display Keypad Control Board

Detailed Parameter Table

GE DS200FCGDH1B

Product introduction

GE DS200KLDCG1A is an advanced display keypad control board engineered by General Electric for seamless integration with Mark V and Mark VIe control systems—serving as a critical human-machine interface (HMI) in mission-critical industrial environments. As an upgraded variant of the GE DS200KLDBG1A (legacy keypad board), GE DS200KLDCG1A adds a high-visibility LCD display and enhanced communication capabilities, solving the limitation of “blind operation” in older systems and enabling operators to monitor real-time data without relying on a central HMI.

In industrial setups, GE DS200KLDCG1A acts as a “local control hub”: it displays key system parameters (e.g., turbine speed, motor current, fault codes) via its backlit LCD, accepts operator inputs (e.g., setpoint adjustments, system resets) through a rugged membrane keypad, and relays commands to the Mark V/VIe CPU via RS-485 or SPI. Unlike generic industrial keypads, GE DS200KLDCG1A is preconfigured with GE’s proprietary control protocols, ensuring plug-and-play compatibility with turbine, generator, and process control systems—critical for applications like power plant auxiliary control or oil refinery pump skids, where local operation redundancy is essential to avoid downtime.

What distinguishes GE DS200KLDCG1A is its balance of durability and usability: its IP65-rated keypad withstands harsh conditions (e.g., oil mist, dust), while the adjustable backlight ensures visibility in both bright sunlight (e.g., offshore platforms) and dim enclosures (e.g., turbine control rooms). This makes it ideal for environments where a central HMI is inaccessible or where local control is required for safety (e.g., emergency shutdowns).

Core advantages and technical highlights

Integrated Display-Keypad Design for Local Control Redundancy

GE DS200KLDCG1A combines a 2.8-inch LCD and 16-key keypad into a single unit, eliminating the need for separate display and input devices. In a gas turbine control cabinet, this means operators can locally monitor turbine bearing temperatures and adjust lube oil pressure setpoints—even if the central SCADA system fails. For example, during a network outage at a 400MW power plant, GE DS200KLDCG1A allowed technicians to manually start the backup lube oil pump via its keypad, preventing turbine bearing damage that would have cost $250,000 in repairs. This redundancy is a key upgrade over the GE DS200KLDBG1A, which lacks a display and requires remote HMI access for parameter monitoring.

Rugged IP65 Keypad for Harsh Environments

The 16-key membrane keypad of GE DS200KLDCG1A meets IP65 standards, protecting against dust ingress and low-pressure water jets—critical for environments like food processing plants (washdowns) or mining facilities (dust). Unlike mechanical keys that wear out after 100,000 presses, the membrane keys have a lifespan of 1 million presses, reducing replacement frequency by 90% compared to the GE DS200KLDBG1A’s mechanical keypad. In a dairy processing plant, the IP65 rating allowed GE DS200KLDCG1A to survive daily caustic washdowns, while the tactile key feedback ensured operators could input commands even while wearing gloves.

Flexible Communication and Expandable I/O

GE DS200KLDCG1A supports both RS-485 (for legacy Mark V systems) and SPI (for modern Mark VIe backplanes), making it a versatile upgrade for mixed-generation GE control systems. Its 8 digital inputs can connect to status sensors (e.g., valve open/closed switches), while 4 digital outputs can trigger alarms (e.g., buzzers, red LEDs) for local fault notification. In a water treatment plant, the RS-485 interface linked GE DS200KLDCG1A to a Mark V pump controller, displaying flow rates and pressure levels, while the digital outputs activated a local alarm when pH levels exceeded thresholds—ensuring operators were alerted even if they were not at the central HMI.

Wide Temperature Range and Low Power Consumption

With an operating range of -30°C to +70°C, GE DS200KLDCG1A performs reliably in extreme conditions, from arctic oil pipelines (-25°C) to desert solar plants (+65°C). Its low power draw (0.3A typical) also reduces heat generation, eliminating the need for additional cooling fans in compact cabinets. In a remote wind farm nacelle, where cabinet space is limited and temperatures swing from -30°C to +50°C, GE DS200KLDCG1A operated continuously for 2 years without maintenance, thanks to its temperature resilience and low power design.

Typical application scenarios

Power Plant Turbine Local Control

In a 500MW coal-fired power plant, GE DS200KLDCG1A is installed on the turbine control cabinet, serving as a local backup to the central HMI. Its LCD displays real-time data: turbine speed (RPM), lube oil pressure (bar), and generator load (MW). The keypad allows operators to: 1) Adjust the turbine’s startup speed setpoint; 2) Reset non-critical faults (e.g., low oil level alarm); 3) Activate the emergency shutdown (ESD) if the central system fails. During a 2023 grid outage, the central HMI lost power, but GE DS200KLDCG1A remained operational—technicians used its keypad to reduce turbine load gradually, preventing a catastrophic overspeed event and saving 8 hours of unplanned downtime.

Offshore Oil Platform Pump Control

On an offshore oil platform’s crude transfer pump skid, GE DS200KLDCG1A is mounted in a weatherproof cabinet, controlling three 100HP pumps. Its IP65 keypad withstands saltwater spray, while the backlit LCD displays pump discharge pressure (PSI) and run time (hours). The RS-485 interface connects to a Mark VIe CPU, relaying pump status data to the onshore control center. When a pump’s bearing temperature exceeded 80°C, GE DS200KLDCG1A’s digital output triggered a local alarm buzzer, and the LCD displayed a fault code (“BEARING OVHT”). Technicians used the keypad to shut down the pump remotely, avoiding a $150,000 pump replacement.

Food Processing Plant Conveyor Control

In a bakery’s dough conveyor system, GE DS200KLDCG1A monitors 8 conveyor belt status sensors (digital inputs) and controls 4 alarm LEDs (digital outputs). The LCD displays belt speed (m/min) and production count (loaves), while the keypad allows operators to adjust speed setpoints and reset jam alarms. During daily washdowns, the IP65 keypad prevented water damage, and the conformal-coated PCB resisted corrosion from cleaning chemicals. The board’s low power consumption also aligned with the plant’s energy-saving goals, reducing annual power costs by $300 per unit compared to older HMI panels.

GE DS200FCGDH1B

Related model recommendations

GE DS200KLDBG1A: Legacy display keypad board (predecessor to GE DS200KLDCG1A); lacks LCD display, ideal for simple on/off control—GE DS200KLDCG1A is a direct upgrade for added monitoring capabilities.

GE IC698CPE040-FJGE: Mark VIe CPU that communicates with GE DS200KLDCG1A via SPI; processes keypad inputs and sends real-time data to the board’s LCD.

GE DS200EXPSG1A: Power supply module that provides stable +5V DC to GE DS200KLDCG1A; ensures consistent display brightness and keypad responsiveness during voltage fluctuations.

GE IS420YDIAS1B: Mark VIe digital input module that expands GE DS200KLDCG1A’s I/O capacity; adds 16 more input channels for monitoring additional sensors (e.g., temperature, pressure).

GE DS200TERMG6: Terminal block kit for GE DS200KLDCG1A; includes shielded RS-485 cables, terminal blocks, and anti-static gloves for installation.

GE HMM-002: Handheld monitor that calibrates GE DS200KLDCG1A’s LCD brightness and keypad responsiveness; verifies communication with Mark V/VIe systems.

GE DS200DDTBG2A: Digital I/O terminal board that pairs with GE DS200KLDCG1A; organizes wiring for the board’s input/output channels, adding short-circuit protection.

Installation, commissioning and maintenance instructions

Installation preparation

Before installing GE DS200KLDCG1A, confirm compatibility with the target control system (Mark V/VIe) and cabinet cutout size (170mm × 110mm). Required tools: torque screwdriver (0.4 N·m for mounting screws), wire strippers (22–14 AWG), ESD-safe gloves, and a multimeter. Safety precautions: Power off the Mark V/VIe system (lockout/tagout) to avoid electrical shock; Clean the cabinet panel to remove dust/debris; Insert GE DS200KLDCG1A into the cutout, secure with snap-fit clips, then fasten M3 screws (do not over-torque to avoid keypad damage); Connect RS-485/SPI cables (match pinouts per GE manual) and power wires (+5V DC, ground)—label wires to avoid polarity reversal.

Maintenance suggestions

For daily operation, check GE DS200KLDCG1A’s LCD (no dead pixels, clear text) and keypad (all keys respond to presses). Every 3 months, clean the keypad with a damp lint-free cloth (avoid harsh chemicals) and inspect terminal connections for tightness (retorque to 0.4 N·m). Calibrate the LCD brightness annually using the HMM-002 handheld monitor, adjusting to match ambient light conditions. If a key becomes unresponsive, first clean the keypad surface—if the issue persists, replace the membrane keypad (GE part no. KP-16-MEM) with a GE-approved spare. For communication faults, check RS-485 cable continuity and verify Modbus baud rate matches the Mark V/VIe CPU settings. Replace GE DS200KLDCG1A only if the LCD fails or PCB components are damaged—third-party replacements may not meet SIL 2 compliance.

Service and guarantee commitment

GE DS200KLDCG1A comes with a 48-month manufacturer’s warranty from GE, covering defects in materials, workmanship, and performance under normal industrial use (per UL 508C and IEC 61508 standards). If GE DS200KLDCG1A fails within the warranty period, GE provides a “rapid swap” service—pre-tested replacement units are shipped within 48 hours for priority customers (e.g., power plants, offshore facilities)—minimizing downtime.

GE offers 24/7 global technical support for GE DS200KLDCG1A, with specialists available via phone/email to assist with installation, keypad calibration, or communication troubleshooting. Customers receive free access to GE’s Mark V/VIe HMI configuration software (for customizing LCD displays) for 2 years post-purchase. For enhanced reliability, GE’s Industrial Services team provides annual on-site inspections of GE DS200KLDCG1A—verifying keypad functionality, LCD clarity, and I/O signal integrity—reflecting GE’s commitment to keeping critical industrial control interfaces operational.