Description

GE DS200SLCCG1ACC Product Description

Product Overview

The GE DS200SLCCG1ACC is a standard-version safety logic control and interlock module, specifically developed for seamless integration with GE’s Mark V Speedtronic turbine control system—an industry critical component in industrial power generation, regional utilities, and medium-scale energy facilities managing gas, steam, and combined-cycle turbines. As a “dedicated safety barrier” for turbine operation, GE DS200SLCCG1ACC undertakes three core roles: implementing safety interlock logic to prevent hazardous operations (e.g., prohibiting turbine startup if lubricating oil pressure is below 0.2MPa), executing emergency protection actions for abnormal conditions (e.g., triggering turbine shutdown when rotor overspeed exceeds 110% rated speed), and ensuring compliance with industrial safety standards (e.g., IEC 61508 SIL 2) through fault-tolerant design and safety-related diagnostic functions.

Unlike multi-functional modules such as the control-monitoring integrated GE DS200CTBAG1ADD (auxiliary subsystem management) or signal adaptation-focused GE DS200ADPBG1ABB (third-party device compatibility), GE DS200SLCCG1ACC is positioned as a “specialized safety controller” for medium-scale turbines (100MW–300MW). It abandons non-safety-related functions (e.g., routine status monitoring, non-critical control) to focus on safety logic—adopting a fail-safe design (e.g., default output to safe state when faults occur) and redundant signal processing to minimize safety risks. By centralizing 8–10 key safety interlock loops in a single Mark V-compatible slot, GE DS200SLCCG1ACC reduces the complexity of discrete safety circuits by 50% and shortens emergency response time to ≤200ms, meeting the strict safety requirements of industrial sites. For plant operators, GE DS200SLCCG1ACC acts as a “safety gatekeeper” for the Mark V system, ensuring turbine operation stays within safe boundaries and minimizing accident risks caused by human error or equipment failure.

Technical Specifications

DS200SLCCG1ACC

Key Differentiators vs. Control/Monitoring Modules

To meet the strict requirements of turbine safety control, GE DS200SLCCG1ACC differs from general control and monitoring modules in functional positioning and design principles:

Main Features and Advantages

SIL 2-Certified Safety Design for Hazard Prevention: GE DS200SLCCG1ACC is fully compliant with IEC 61508 SIL 2 standards, with a diagnostic coverage rate of ≥90% and single-channel fault detection capability. For example, its dual-channel analog input design compares signals from two independent sensors (e.g., two speed sensors); if the deviation exceeds 5%, it triggers a fault alert and switches to the more reliable signal to avoid false shutdown or missed protection. A 150MW industrial steam turbine plant in Northern China used this module to implement overspeed protection, achieving zero safety-related accidents in 2 years of operation—meeting the plant’s SIL 2 certification requirements for safety systems.

Fail-Safe Outputs to Ensure Safe State Transition: All safety outputs of the module adopt a fail-safe design—defaulting to the safe state (e.g., closing the fuel cut-off valve, activating the emergency stop) when power is lost, module faults occur, or safety logic is abnormal. The built-in supercapacitor provides 10ms of backup power during sudden power loss, ensuring the module completes the safe state transition before power is completely cut off. A 180MW gas turbine plant in Southeast Asia experienced a grid power fluctuation; the module relied on the supercapacitor to cut off fuel supply within 50ms, avoiding turbine overspeed damage.

Pre-Built Safety Logic Templates for Fast Deployment: The module provides pre-built safety logic templates for common turbine hazards, including rotor overspeed protection, lubricating oil pressure low shutdown, bearing temperature high alarm/shutdown, and emergency stop button interlock. These templates can be directly configured via the Mark V safety configuration tool (no need for custom programming), shortening the safety system commissioning time by 40%. A 200MW combined-cycle plant in Southern Europe used the pre-built low oil pressure shutdown template, completing the logic configuration and testing in 3 days—compared to 1 week for custom logic development.

Rapid Safety Logic Execution for Hazard Response: The module prioritizes safety logic execution, with a single interlock loop response time of ≤50ms and multi-loop cascading protection response time of ≤200ms—far faster than general control modules (≥100ms). For example, when a rotor overspeed signal (exceeding 110% rated speed) is detected, the module can cut off the fuel supply and activate the emergency brake within 80ms, limiting the maximum overspeed to <112% and avoiding turbine damage. A 120MW regional utility turbine plant in Central Asia verified this function through a dynamic test, confirming that the module’s response time fully meets the turbine’s safety protection requirements.

Application Field

GE DS200SLCCG1ACC is widely used in medium-scale Mark V-based turbine systems requiring strict safety control, focusing on two core application scenarios: industrial turbine safety protection system upgrading and regional utility turbine safety compliance deployment.

In industrial turbine safety protection system upgrading, GE DS200SLCCG1ACC replaces outdated discrete safety circuits. A 160MW industrial steam turbine plant in Eastern China (operating for 10 years) had aging discrete safety relays with frequent false alarms. The plant deployed GE DS200SLCCG1ACC to integrate 8 safety interlock loops (overspeed, low oil pressure, high temperature) into a single module, reducing the number of discrete components by 60% and eliminating false safety alarms—improving the safety system’s reliability and reducing maintenance costs by 30% annually.

In regional utility turbine safety compliance deployment, GE DS200SLCCG1ACC helps meet new safety standards. A 220MW gas turbine plant in Southwest Asia needed to comply with the local government’s new safety regulations (requiring SIL 2 certification for turbine safety systems). The plant installed GE DS200SLCCG1ACC to implement key safety functions such as overspeed protection and emergency stop interlock. The module’s SIL 2 certification and fault-tolerant design enabled the plant to pass the regulatory inspection smoothly, ensuring legal operation and avoiding fines for non-compliance.

Related Products

GE DS200CTBAG1ADD: Control-monitoring module that collaborates with GE DS200SLCCG1ACC—the latter receives critical parameter signals (e.g., bearing temperature) from the former for safety logic judgment, while the former executes non-safety control tasks.

GE DS200ADPBG1ABB: Signal adaptation module that provides adapted signals for GE DS200SLCCG1ACC—e.g., converting third-party sensor signals (0–10V) to 4–20mA safety inputs compatible with the module.

GE DS200PCCAG1ABB: Power control module that supplies dual redundant 24V DC power to GE DS200SLCCG1ACC, ensuring the safety system’s power reliability.

GE 3500 Speed Sensor: Dual-channel redundant speed sensor compatible with the module’s analog safety inputs, used for rotor overspeed protection signal acquisition.

GE Emergency Stop Button (SAFE-100): Safety-certified digital input device that connects to the module’s digital safety inputs, triggering emergency shutdown logic.

GE Safety Configuration Tool (SCT-Mark V): Specialized software for configuring the module’s safety logic, including template selection, parameter setting, and fault logging viewing.

GE DS200TCEBG1ACE: Turbine protection module that receives emergency action signals from GE DS200SLCCG1ACC (e.g., shutdown command) and amplifies them to drive large-scale actuators (e.g., main steam valve).

GE Safety System Tester (SST-200): Handheld tool for testing the module’s safety functions, including input/output signal simulation, logic execution verification, and fault injection testing.

DS200SLCCG1ACC

Installation and Maintenance

Pre-installation preparation: Before installing GE DS200SLCCG1ACC, confirm the Mark V system firmware is v4.6+ to support its safety logic functions. Use ESD-safe tools (anti-static wristband, insulated screwdrivers) with a resistance of 1MΩ–10MΩ to avoid damaging the module’s safety circuits. Ensure safety inputs adopt dual-channel redundant wiring (e.g., two independent speed sensors connected to separate analog input channels) and use shielded twisted-pair cables (grounded at both ends) to suppress electromagnetic interference. Configure safety logic via the GE Safety Configuration Tool—select pre-built templates, set parameter thresholds (e.g., overspeed shutdown threshold 110% rated speed), and verify logic execution order (prioritize emergency shutdown over alarm).

Maintenance recommendations: Perform daily remote monitoring of the module via the Mark V safety monitoring interface, focusing on safety input signal consistency (dual-channel deviation ≤5%) and output status (no abnormal fail-safe triggers). Conduct monthly on-site inspections: check for loose safety input/output terminals (torque 1.0–1.2N·m), corrosion on redundant power connectors, and illuminated safety fault LEDs. Every quarter, use the GE Safety System Tester to perform fault injection tests (e.g., simulate a single input channel fault) and verify that the module switches to the safe state or redundant channel correctly. Every 6 months, review safety fault logs to identify recurring issues (e.g., frequent dual-channel deviations) and resolve root causes (e.g., recalibrate sensors). For SIL 2 compliance, conduct annual safety system re-verification in accordance with IEC 61508 standards to ensure the module’s safety functions remain valid.

Product Guarantee

GE provides an 18-month standard warranty for GE DS200SLCCG1ACC (extended from the 12-month warranty of general modules), covering material defects, workmanship issues, and compliance with IEC 61508 SIL 2/UL 61010-2-201 standards from the date of shipment. The warranty includes free replacement of faulty modules and 24/7 access to GE’s global safety technical support team—specializing in Mark V safety logic troubleshooting to resolve issues such as safety logic malfunctions, dual-channel input deviations, or fail-safe output errors. For industrial power plants or regional utility projects with strict safety requirements, GE offers optional 3-year extended warranties and on-site safety verification services (including annual SIL 2 re-certification support). GE’s OEM-certified repair services for GE DS200SLCCG1ACC include safety circuit testing, logic function recalibration, and redundant component replacement—with post-repair safety verification to ensure compliance with SIL 2 standards, providing a 12-month post-repair warranty for long-term reliable operation of turbine safety systems.