1 Year Warranty
Description
Product Overview
DS200XDSAG1A is a digital signal output board manufactured by GE for the Mark V turbine control system, designed as part of the DS200 series rack‑mounted hardware for heavy‑duty gas and steam turbine control. This board delivers discrete digital output signals to drive field‑side auxiliary relays, solenoids, and status indication hardware, translating internal turbine control logic states into hard‑wired field commands. It forms a critical link between the Mark V core processor and plant‑floor electromechanical devices within turbine‑control cubicles.
Legacy turbine retrofit projects frequently face limited spare availability and signal‑path ageing on original control hardware. DS200XDSAG1A addresses these real‑world pain‑points by providing galvanically isolated discrete outputs to suppress electrical transients originating from inductive field loads. On‑board status circuitry offers channel‑level feedback for diagnostic purposes, helping maintenance teams identify open‑circuit conditions and hardware faults without extensive point‑to‑point wiring tests. It plugs directly into the Mark V backplane, exchanging control data via the system internal bus and works alongside other DS200 series I/O boards to complete turbine sequence, protection and auxiliary control functions.
Technical Specifications
| Parameter name | Parameter value |
|---|---|
| Product model | DS200XDSAG1A |
| Manufacturer | GE |
| Product type | Mark V Digital Signal Output Board |
| System compatibility | GE Mark V Turbine Control System |
| Backplane interface | Mark V DS200 series backplane |
| Number of output channels | 16 isolated digital outputs |
| Output type | Relay‑driven discrete contact outputs |
| Load rating per channel | 125 V DC / 250 V AC maximum resistive load |
| Operating temperature | 0 °C ~ +60 °C |
| Mounting | Plug‑in for Mark V rack backplane |
| Protection class | IP20 (inside control cabinet) |
| Dimensions (H×W×D) | 311 mm × 245 mm × 30 mm |
| Weight | 920 g |
| Certifications | CE, compliant with power‑generation industry standards |
Key Features and Advantages
galvanically isolated relay outputs: DS200XDSAG1A uses individual relay contacts to achieve electrical separation between turbine control logic and field loads. This blocks surge voltages from solenoids and contactors, preventing inductive kickback damage from propagating onto the Mark V system backplane. channel‑level diagnostic feedback: Each output channel provides status feedback to the Mark V controller. Operators can detect relay actuation anomalies and wiring faults within the HMI diagnostic display, cutting manual troubleshooting time during turbine stand‑down events. legacy platform compatibility: Designed for direct drop‑in replacement within existing Mark V racks. No cabinet rewiring or backplane modification is required during board swap‑out for plant spare‑part change‑outs and retrofits. robust industrial hardware construction: Built for continuous long‑term operation inside turbine‑house control cubicles. The board is engineered to tolerate moderate cabinet vibration and electromagnetic interference common around gas and steam turbine assets. modular rack architecture: Works cooperatively with other DS200 series boards. Digital output processing is decentralised onto this I/O card, reducing processing burden on the main Mark V CPU and preserving system scan‑time performance for critical turbine protection logic.
DS200XDSAG1A
Application Fields
DS200XDSAG1A operates inside GE Mark V turbine control cabinets at thermal power plants, combined‑cycle facilities and industrial captive power stations. It executes sequence‑driven discrete control tasks for gas‑turbine auxiliary systems, including fuel‑valve solenoid actuation, lube‑oil pump start‑stop commands, damper and vent valve control, as well as local status annunciation for alarm panels.
Within steam‑turbine generation units, the board drives trip circuit auxiliary relays, cooling‑system interlock outputs and plant‑wide alarm signalling. It translates turbine protection and sequence logic states into hard‑contact signals for field‑mounted devices, serving as the final execution layer before field equipment.
For power‑plant modernisation projects where core controllers remain Mark V while auxiliary equipment is upgraded, DS200XDSAG1A maintains compatibility with existing field relay and solenoid wiring. It delivers reliable discrete control without forcing a full‑scale migration to newer control platforms, helping asset owners extend service life of existing turbine installations while controlling capital expenditure.
Related Products
- DS200XDSAG1B: Revised hardware version, functional drop‑in upgrade alternative for DS200XDSAG1A
- DS200TCCAG1A: Mark V turbine control core board, main logic processor paired with this output board
- DS200ADG1A: Analog input board of DS200 family, acquires process measurement signals
- DS200DCVG1A: DC voltage input board, for discrete status feedback from field contacts
- DS200SLCC1A: Serial communication board, links Mark V system to plant SCADA
- DS200CPUBG1A: Mark V CPU board, executes turbine main control algorithm
- IS200 series: Mark VI control family, next‑generation turbine‑control hardware platform
Installation and Maintenance
pre‑installation preparation: Before inserting DS200XDSAG1A into Mark V rack, fully power down the turbine control rack and isolate all field‑side power connected to output relay contacts. Inspect backplane connectors for dust, oxidation or bent pins. Confirm jumpers match existing plant configuration settings from the original board documentation. After physical installation, perform full point‑to‑point loop testing to validate every channel actuation before returning the turbine system to operational mode.
maintenance recommendations: Carry out visual inspection of board and terminal connections during scheduled plant outages. Check relay‑contact ageing signs if channels drive high‑frequency inductive loads. Never hot‑swap DS200XDSAG1A under energised rack conditions; live removal will interrupt turbine control sequences and create unsafe operating states. If output mis‑behaviour occurs, verify field‑side loads and wiring insulation before replacing the board. DS200XDSAG1A has no field‑repairable components; return defective hardware to qualified industrial repair facilities.
Product Warranty & Support
Each DS200XDSAG1A undergoes factory‑level functional testing, channel‑by‑channel relay validation and backplane interoperability checks prior to shipment. Standard warranty covers manufacturing defects for 12 months from delivery date. Spare‑part supply, configuration consulting and remote technical support are available for spare replacement, outage maintenance and pre‑commissioning loop checks. Technical specialists offer guidance on relay‑load derating and jumper‑setting verification for legacy Mark V racks. Continuous spare‑parts inventory support mitigates hardware obsolescence risk for legacy gas‑ and steam‑turbine control installations across power‑generation sites.
