The GE IS200AEPAH1AFD+IS210BPPBH2CAA are printed circuit boards (PCBs) used in GE Mark VI turbine control systems, part of GE's Speedtronic series for gas/steam turbine management.

IS200AEPAH1AFD – Exciter Application Processor (EAP) Board

• Function:

• Acts as an Exciter Application Processor in the Mark VI system.

• Manages generator excitation control, including voltage regulation, field current control, and protection.

• Interfaces with thyristor bridges, field flash systems, and protection circuits.

• Key Features:

• Dual-channel redundancy (often used in pairs for reliability).

• High-speed DSP (Digital Signal Processor) for real-time control.

• Supports GE’s EX2100 excitation control (compatible with Mark VI).

• Communicates via Ethernet, serial, or I/O modules within the turbine control system.

• Typical Applications:

• Gas turbine (Frame 5/6/7/9) and steam turbine excitation systems.

• Power generation plants requiring precise voltage/frequency control.

IS210BPPBH2CAA – Backup Protection Processor (BPP) Board

• Function:

• Serves as a Backup Protection Processor in the Mark VI system.

• Provides redundant protection for critical turbine/generator functions (overspeed, overvoltage, etc.).

• Works alongside the Primary Protection Processor (PPP) for fail-safe operation.

• Key Features:

• Triple modular redundancy (TMR) support for high reliability.

• Independent fault detection (compares with PPP for discrepancies).

• Hardware-based trip logic for fast shutdowns in emergencies.

• Communicates with I/O packs (e.g., IS200 series) via backplane.

• Typical Applications:

• Emergency turbine shutdowns (mechanical/hydraulic overspeed).

• Generator protection (differential current, ground faults).

Common Mark VI System Integration

• Both boards are rack-mounted in a Mark VI controller (VME or UR chassis).

• Interfaces:

• Ethernet (TCP/IP) for HMI/Workstation communication.

• PROFIBUS/Modbus for field devices.

• Hardwired I/O for sensors/actuators.

• Software:

• Configured via GE ToolboxST (for Mark VI).

• Logic programmed in Cimplicity or Function Block Diagrams (FBD).

Related Products:

GE Fanuc IC200UDR005 28-point mini PLC module

GE IS200BPPBH2BMD Smart module or auxiliary board

GE IS200ESELH1A Driver selection board

GE DS200IAXSG1A Gas turbine control system