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GE DS200DCFBG1BGB|DC Feedback Power Board|

Core Functions
Control-level power generation and distribution
Motor magnetic field power supply
SCR gate drive and triggering control
AC/DC signal monitoring
Cooling fan power supply
Input Specifications
Input voltage: 38–115 VAC
Source: Direct supply from the control power transformer
Output Specifications
Control-level DC outputs:
+5 VDC
±15 VDC
±24 VDC
Fan power supply:
115 VAC
Key Circuit Functions
Control-level power supply regulation
Motor magnetic field excitation power supply
SCR gate drive and firing circuitry
AC/DC signal monitoring, including:
Armature current
Magnetic field current
Line voltage and phase signals
Configuration & Adjustment
Jumpers: 13 configurable jumpers (JP)
Switches: 7 DIP switches (SW)
Supports adaptation to different drive models and SCR gate-drive parameter settings
Status Indication
LED indicators: 2 × red LEDs
Fuse status indicator: 1 × neon lamp
Test & Diagnostics
5 dedicated test points for on-site voltage measurement
Visual indication of power supply and fuse status enables rapid fault localization
Key Features
Integrated Power Supply & Feedback
Provides stable DC power for control circuits and AC power for cooling fans
Simultaneously monitors critical signals (armature current, field current, incoming line conditions) to support closed-loop stability of the drive system
Flexible Configuration
Jumper and DIP switch configuration allows compatibility with multiple drive types and application scenarios
Supports SCR gate drive tuning and adaptation
Fault Diagnosis & Maintenance
Real-time indication of power and fuse conditions via LEDs and neon lamp
Test points simplify commissioning, troubleshooting, and preventive maintenance
System Compatibility
Compatible with multiple GE drive and excitation platforms
Particularly suited for the EX2000 excitation system
Widely used in gas turbine and industrial motor drive control applications
GE DS200DCFBG1BGB|DC Feedback Power Board|
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By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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