Features:
- Measures both field current and field voltage at the EX2100e SCR bridge.
- Converts the two measurements into independent frequency feedback signals.
- Uses an optical link to isolate bridge feedback from the EAUX interface.
IS200EDFFH2A belongs to the dual-control H2 group rather than the TMR or simplex EDFF groups.
Current feedback originates at a shunt in the dc field circuit before entering the converter channel.
Eight selection positions allow the field-voltage channel to accommodate the bridge voltage range.
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General Electric IS200EDFFH2A DC Fanned Feedback Board Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Measurement Processing
- Current Channel: IS200EDFFH2A receives its input from a dc-field shunt.
- Voltage Channel: A separate circuit measures the exciter or regulator output.
- Signal Format: Both analog quantities are changed into frequency feedback.
- Converter Count: One V-F circuit is assigned to current and one to voltage.
EAUX Feedback Link
- Connected Board: Feedback passes between EDFF and the EAUX auxiliary interface.
- Transmission Medium: The inter-board connection is high-speed fiber optic.
- Electrical Boundary: The optical path provides voltage isolation between the boards.
- Noise Behavior: Fiber transmission improves immunity near the SCR power bridge.
Bridge Voltage Selection
- Adjustment Method: Eight selector settings establish the voltage-feedback scale.
- Selection Basis: The setting follows the voltage of the connected bridge application.
- Measured Location: Field voltage is taken at the exciter or regulator output.
- Independent Path: Voltage scaling does not change the separate field-current channel.
H2 Control Arrangement
- Group Code: H2 identifies the dual-control version of IS200EDFFH2A.
- Alternative Groups: H1 is assigned to TMR and H3 to simplex EDFF systems.
- Feedback Fan-out: EDFF converter circuits support redundant control signal paths.
- System Position: The board sits between SCR bridge measurements and the EAUX interface.