I/O modules

The GE IS200EDCFG1B IS200EDCFG1BAA DC Feedback Board monitors DC voltage and current signals from generator fields. This board provides precise measurement data to the Mark VI controller. You will find it sampling exciter field voltage and armature current. It ensures accurate closed-loop regulation of generator output.

Core Technical Specifications

The GE IS200EDCFG1B IS200EDCFG1BAA DC Feedback Board measures 32.0 cm in width and 24.0 cm in height. Its board depth equals 2.5 cm for standard rack mounting. The total assembly weighs approximately 0.68 kilograms. Eight differential analog input channels occupy the board’s front section. Each channel accepts a ±10 VDC or ±20 mA field signal.

Connectors and Interface Layout

The GE IS200EDCFG1B IS200EDCFG1BAA DC Feedback Board uses one 64-pin DIN connector for backplane communication. This connector sends all digitized values to the VCRC processor. Two 25-pin D-sub connectors handle field wiring for the eight inputs. Eight green LEDs indicate valid signal presence on each channel. A red LED flashes when any input exceeds its configured range.

Energy Storage and Signal Conditioning

This DC feedback board contains no large electrolytic capacitors on the analog path. Consequently, it stores almost no energy after power removal. Each channel includes a programmable low-pass filter for noise rejection. This filter removes switching noise from the exciter circuit. Moreover, the GE IS200EDCFG1B IS200EDCFG1BAA DC Feedback Board integrates precision voltage dividers for high-voltage measurement. You can configure each input for voltage or current via software. Use shielded twisted-pair cables for all field connections. This practice maintains signal integrity in noisy environments. Do not exceed ±100 VDC on any input even momentarily.

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