Product Overview

The GE IS200PMCIH1ABA is a specialized Power Manager Control Interface Module engineered for the GE Mark VIe turbine and generator control system,part of the advanced SPEEDTRONIC™platform used in utility-scale and industrial power generation.This module serves as the critical digital interface between the Mark VIe controller and external electrical protection,synchronization,and plant auxiliary systems—enabling precise coordination of generator breaker operations,automatic synchronization to the grid,load transfer,and islanding/de-islanding sequences.

Designed for high-reliability applications,the IS200PMCIH1ABA combines discrete inputs for status feedback(e.g.,breaker position,sync check relay status)with high-current relay outputs capable of directly tripping or closing medium-voltage breakers or contactors.Its deterministic response over the Mark VIe’s I/O NET Ethernet backbone ensures sub-millisecond timing for critical events such as fast transfer during loss of off-site power or anti-islanding protection.The module supports both simplex and Triple Modular Redundant(TMR)architectures,making it suitable for black-start units,combined-cycle blocks,and grid-supporting generators where failure is not an option.With integrated LED diagnostics and full visibility in ToolboxST,the IS200PMCIH1ABA simplifies commissioning,troubleshooting,and compliance reporting.

Technical Specifications

Parameter Name Parameter Value

Product Model IS200PMCIH1ABA

Manufacturer GE Vernova(formerly GE Power/GE Digital Energy)

Product Type Power Manager Control Interface Module

Compatible System GE Mark VIe SPEEDTRONIC™

Primary Function Generator breaker control,sync signaling,plant interlocks

Discrete Inputs 8–16 channels(typically 24–125 VDC,isolated)

Relay Outputs 4–8 Form A/B/C electromechanical relays(rated up to 5 A 250 VAC/30 VDC)

Communication Interface Deterministic Ethernet(I/O NET) 100 Mbps

Redundancy Support Simplex,Dual,and TMR compatible

Operating Temperature 0°C to+60°C

Diagnostic Features Per-channel LEDs,software health monitoring via ToolboxST

Mounting Plug-in module in Mark VIe I/O rack

Safety Compliance Meets IEEE C37.90,IEC 61508(SIL 2 in TMR mode)

Note:Exact I/O count may vary by firmware revision;refer to GE documentation for channel mapping.

Main Features and Advantages

Direct Breaker Control Without External Relays

Unlike standard digital output modules,the IS200PMCIH1ABA features high-current electromechanical relays rated for direct connection to generator breaker trip/close coils—eliminating the need for intermediate contactor panels.This reduces wiring complexity,panel space,and potential failure points in the control chain.

Seamless Integration with Generator Protection&Sync Systems

The module interfaces with external devices such as synchronizing relays,voltage regulators,loss-of-potential detectors,and plant transfer schemes.Inputs capture real-time status(e.g.,“Breaker Closed,”“Sync OK”),while outputs initiate actions like“Close Generator Breaker”or“Transfer to Backup Bus”—all coordinated by Mark VIe application logic.

Deterministic Timing for Critical Sequences

In fast-transfer or black-start scenarios,timing is everything.The IS200PMCIH1ABA operates on the Mark VIe’s synchronized task scheduler,ensuring that breaker commands are issued within milliseconds of a trigger event—critical for maintaining process continuity during grid disturbances.

TMR Support for Fail-Safe Operation

In TMR-configured Mark VIe systems,three IS200PMCIH1ABA modules operate in parallel with voting logic.If one module fails,the system continues to operate safely—ensuring uninterrupted control of essential functions like emergency load rejection or island mode initiation.

Comprehensive Diagnostics&Cyber-Ready Design

Each input and output channel includes a front-panel LED for visual verification.In ToolboxST,engineers can force/test points,log sequence-of-events with 1 ms resolution,and monitor relay coil health.The module also supports secure firmware updates and access control per IEC 62443 guidelines.

Application Field

The IS200PMCIH1ABA is widely deployed in combined-cycle power plants,where it manages the complex handshaking between gas turbines,steam turbines,HRSGs,and the grid connection point.It enables auto-synchronization of multiple generators to a common bus,executes load shedding during under-frequency events,and controls unit auxiliary bus transfers during startup or outage recovery.

In industrial cogeneration facilities,the module supports islanding mode,allowing the plant to disconnect from the utility and continue powering critical processes—a capability enhanced by its fast-response outputs.Hydro and wind farms with Mark VIe-based balance-of-plant control also use the IS200PMCIH1ABA for collector substation breaker management and anti-islanding protection.By bridging turbine logic and electrical switchgear,this module ensures safe,compliant,and efficient power delivery—whether feeding megawatts to the grid or keeping a refinery online during a blackout.

Related Products

IS200PCCAH1A:Core Controller that coordinates with IS200PMCIH1ABA

IS200EGDMH1AFF:Excitation Gate Driver(often used in same control scheme)

IS200SPROH1A:Generator Protection Relay Interface

Mark VIe ToolboxST:Configuration,testing,and diagnostics software

IS200DSIH1A:Digital Serial Interface for legacy relay communication

336A5026ADP1:Terminal block assembly(model-specific;verify compatibility)

IS220PDOAH1A:General-purpose discrete output module(for non-critical loads)

Installation and Maintenance

Installation Best Practices:

Mount the IS200PMCIH1ABA in a cooled,grounded Mark VIe I/O rack with adequate airflow.Use shielded,twisted-pair cables for all discrete inputs,grounding shields at the controller end only.For relay outputs driving inductive loads(e.g.,breaker coils),install snubber circuits or flyback diodes to suppress voltage spikes.Verify terminal torque specifications and labeling per plant standards.

Maintenance Recommendations:

During outages,inspect relay contacts for pitting or carbon buildup—especially on frequently operated channels.Use ToolboxST to perform output forcing tests and validate input state changes.Monitor event logs for unexpected breaker commands or missed status updates,which may indicate field wiring issues rather than module faults.Replace the module if relay coils show open/short conditions or if communication errors persist after network diagnostics.

Product Guarantee

Every IS200PMCIH1ABA is manufactured to GE’s stringent quality and reliability standards for turbine control hardware.We guarantee full functional and mechanical compatibility with the Mark VIe system and provide a 12-month warranty against defects in materials and workmanship.Backed by deep domain expertise in power plant automation,we ensure the IS200PMCIH1ABA delivers the robustness,precision,and diagnostic transparency required to manage the most critical electrical interfaces—because when a generator connects to the grid,there’s no room for uncertainty.

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