GE Electric | IS200WEMAH1AEA | Motion Feedback Interface Module
IS200WEMAH1AEA Product Overview
Functional Description:
The GE IS200WEMAH1AEA is a Motion Feedback Interface Module for GE Mark VIe turbine control systems. It processes high-speed encoder/resolver signals from rotating equipment (e.g., turbines, motors), converting shaft position/speed data into digital feedback for precision control loops.
Key Parameters & Specifications
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Parameter
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Specification
|
|---|---|
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Part Number
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IS200WEMAH1AEA
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|
Series
|
GE Mark VIe Turbine Control System
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|
Function
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Motion Feedback Signal Processing
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|
Input Types
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Encoder (TTL/HTL), Resolver (Sin/Cos)
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|
Input Channels
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4 channels (independent)
|
|
Max. Frequency
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1 MHz (encoder), 10 kHz (resolver)
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|
Resolution
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24-bit (position), 16-bit (speed)
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Accuracy
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±1 LSB (digital), ±0.05° (resolver)
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|
Isolation
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2,000 V AC (channel-to-backplane)
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Signal Voltage
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5 V DC (encoder), ±10 V AC (resolver)
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Terminal Type
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Spring-clamp (AWG 22–14)
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|
Operating Temp.
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-40°C to +70°C
|
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Backplane Interface
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96-pin connector
|
|
Certifications
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UL 508, IEC 61800-3, RoHS 2
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Product Series
- Part of Mark VIe Motion Feedback Series (compatible with IS200/EX2100 drives).
Key Features
- Dual-Signal Support: Accepts incremental/absolute encoders & resolvers simultaneously.
- EMC Hardened: Conductive coating (suffix “EA”) for IEC 61000-6-4 compliance.
- Loss-of-Signal Detection: Alerts on broken/missing feedback pulses.
- Dynamic Filtering: Adaptive noise suppression for variable-speed applications.
- LED Diagnostics: Per-channel status (signal lock, fault, power).
- Redundancy Support: Cross-channel validation for SIL 2 safety.
Functions & Roles
- Position Decoding: Converts quadrature/A/B/Z pulses to digital position.
- Resolver-to-Digital (RDC): Excites resolvers (3–10 Vrms) and demodulates Sin/Cos.
- Velocity Calculation: Derives RPM from pulse edges with <0.1% error.
- Zero-Position Sync: Captures marker pulse for homing sequences.
- Signal Conditioning: Eliminates ground loops via transformer isolation.
Applications & Use Cases
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Industry
|
Application
|
|---|---|
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Power Generation
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Gas turbine shaft speed monitoring
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Hydroelectric
|
Governor position feedback
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Manufacturing
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CNC axis position control
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Marine Propulsion
|
Thrust bearing angular position
|
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Test Rigs
|
Dynamometer torque/speed measurement
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Documentation & Support
- Manual: GEH-6855 (Mark VIe Motion Feedback Boards)
| Compatible Controllers | Configuration Tool |
|—————————-|————————|
| Mark VIe, EX2100e | GE ToolboxST™ (v7.0+) | - Firmware Updates: Via PCMCIA slot (requires carrier IS200TBCIH1C)
- Replacement Kits: IS200WEMAH1Axx series (xx = revisions)
Critical Notes:
- Requires carrier module IS200TBCIH1C or IS200TBCIG1C.
Resolver Excitation: 7 Vrms @ 3 kHz default (software-configurable).
Encoder Supply: 5 V DC ±5% (250 mA max per channel).
Shielding: All cables must be foil-braided shields grounded at one end.
Derating: Max frequency drops to 500 kHz above 60°C ambient.
Legacy Replacement: Upgrades DS200DCFBG1 boards in Mark V systems.
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