DS200SDCCG1AGD & DS215SDCCG1AZZ01B – GE Mark VIe Turbine Control I/O for 3500 Compatibility
Description
The DS200SDCCG1AGD and DS215SDCCG1AZZ01B are speed detection and control communication modules developed by General Electric(GE)for use in Mark VI and Mark VIe turbine control systems.These modules interface with proximity probes(e.g.,from Bently Nevada 3300 series)to monitor turbine shaft speed with high precision,providing critical input for normal speed control and emergency overspeed protection.While the DS200SDCCG1AGD is designed for the Mark VI platform,the DS215SDCCG1AZZ01B serves as its functional counterpart in the Mark VIe architecture,enabling seamless upgrades and interoperability.
Application Scenarios
At a power generation facility in the UK,engineers faced challenges during a Mark VI to Mark VIe control system migration—legacy speed signals were incompatible with new I/O hardware,risking turbine protection gaps.By deploying the DS215SDCCG1AZZ01B alongside existing DS200SDCCG1AGD modules during the transition phase,they maintained continuous speed monitoring without re-probing.The DS215SDCCG1AZZ01B successfully interpreted legacy 1x,2x,and 3x speed inputs from proximitor sensors,ensuring uninterrupted overspeed protection.This real-world scenario highlights how these modules solve critical challenges:maintaining signal continuity during retrofits,ensuring high-accuracy RPM measurement,and supporting redundant safety systems.Whether in combined-cycle plants,aeroderivative turbines,or industrial compressors,the DS200SDCCG1AGD and DS215SDCCG1AZZ01B serve as the frontline defense against catastrophic overspeed events.
Parameter
Main Parameters Value/Description
Product Model DS200SDCCG1AGD/DS215SDCCG1AZZ01B
Manufacturer General Electric(GE)
Product Category Speed Detection&Control Communication Module
System Compatibility DS200(Mark VI)/DS215(Mark VIe)
Function 3-Channel Speed Input Processing(1x,2x,3x RPM)
Input Signal Type Proximitor(AC Voltage from Magnetic Pickup)
Signal Range 0.5 to 30 V AC(typical for 58X gear tooth sensing)
Frequency Range 1 Hz to 20 kHz(covers startup to overspeed)
Redundancy Support Yes–supports triple-redundant speed monitoring
Status Indication Multi-color LEDs:POWER,RUN,COMM,FAULT per channel
Operating Temperature 0°C to 60°C(industrial environment rated)
Installation Method DIN rail mount,backplane bus connection(P60/P80)
Communication Interface RISC Bus(DS200),Ethernet/TurbineNet(DS215)
Technical Principles and Innovative Values
Innovation Point 1:The DS200SDCCG1AGD and DS215SDCCG1AZZ01B feature triple-channel speed input(1x,2x,3x)for redundancy,enabling voting logic in overspeed protection—ensuring a single sensor failure does not cause a false trip or missed detection.
Innovation Point 2:These modules are optimized for integration with Bently Nevada 3300-series proximitor systems,translating raw AC signals into precise digital RPM values with sub-0.1%accuracy,critical for turbine balance and startup sequencing.
Innovation Point 3:The DS215SDCCG1AZZ01B introduces enhanced diagnostics over the DS200SDCCG1AGD,including time-stamped event logging and Ethernet-based health monitoring,improving predictive maintenance capabilities in Mark VIe systems.
Innovation Point 4:Both modules support hot-swap capability in redundant configurations,allowing field replacement without turbine shutdown—minimizing outage time during maintenance.
Innovation Point 5:Designed for electromagnetic harshness near turbines,the DS200SDCCG1AGD and DS215SDCCG1AZZ01B incorporate shielding and filtering to reject noise from VFDs,generators,and switching transients,ensuring signal integrity.
Application Cases and Industry Value
During a major retrofit at a GE 9FA gas turbine plant in Australia,the control team replaced aging Mark VI hardware with Mark VIe while retaining existing proximity probes.The DS215SDCCG1AZZ01B was deployed to interface legacy sensors with the new controller.It successfully replicated the performance of the DS200SDCCG1AGD,maintaining identical signal thresholds and response times.Post-upgrade,the plant reported zero speed-related trips over 18 months.In another case,a petrochemical facility in Louisiana used the DS200SDCCG1AGD in a critical compressor train.When a bearing fault caused abnormal vibration,the module’s precise speed data enabled the protection system to initiate a safe shutdown before catastrophic failure.These cases demonstrate how the DS200SDCCG1AGD and DS215SDCCG1AZZ01B enhance operational safety,support legacy integration,and enable smooth technology transitions.
Related Product Combination Solutions
DS200TBCIG1B1A:Combustion monitor interface;works with DS200SDCCG1AGD for coordinated turbine protection.
DS215REGAH1A1A:Mark VIe CPU module;primary controller that the DS215SDCCG1AZZ01B communicates with.
3300 XL 8 mm Proximitor:Bently Nevada sensor;provides input signal to both DS200SDCCG1AGD and DS215SDCCG1AZZ01B.
DS200PSDGG1A1A:24V DC power supply;powers the DS200SDCCG1AGD in legacy racks.
DS215PSDGG1A1A:Mark VIe power module;supplies power to the DS215SDCCG1AZZ01B.
DS200CHCCG1A1A:High-speed comms card;enables data sharing between DS200SDCCG1AGD and HMI systems.
DS215CHCCG1A1A:Ethernet communication module;integrates DS215SDCCG1AZZ01B data into plant-wide networks.
DS200VPROG1A1A:Vibration processing module;complements speed data from DS200SDCCG1AGD for full shaft health monitoring.
Installation,Maintenance,and Full-Cycle Support
Installing the DS200SDCCG1AGD or DS215SDCCG1AZZ01B requires alignment with the respective DS200 or DS215 rack on a DIN rail.Connect the proximitor cables to the terminal block,ensuring proper shielding and grounding to prevent noise coupling.Power up the rack and verify LED status:solid green for POWER and RUN,blinking COMM,and no FAULT indication.The module auto-detects input signal range and requires no manual calibration in most configurations.For retrofits,the DS215SDCCG1AZZ01B can be configured to mimic DS200SDCCG1AGD behavior,ensuring compatibility with existing logic.
Routine maintenance includes quarterly visual inspection of LEDs and checking for loose wiring.Both modules are solid-state with no moving parts,ensuring long service life.In redundant systems,failed units can be replaced under power.Our support team offers full lifecycle services,including configuration validation,signal testing,and failure analysis.With access to genuine GE spares and deep expertise in turbine protection systems,we ensure reliable,safe operation.Contact us for a customized solution.
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