I/O modules

The GE IS200EXHSG1A IS200EXHSG1AEC Relay Driver Board controls external auxiliary relays in turbine systems. This board receives low-power logic signals from the main controller. It then amplifies these signals to energize field relays. You will find it managing auxiliary contactors, motor starters, and solenoids.

Core Technical Specifications

The GE IS200EXHSG1A IS200EXHSG1AEC Relay Driver Board measures 32.5 cm in width and 25.0 cm in height. Its board thickness equals 2.5 cm for standard panel fit. The total assembly weighs approximately 0.75 kilograms. Sixteen discrete output channels occupy the board’s front section. Each channel drives a 24 VDC relay coil directly.

Connectors and Status Indicators

The GE IS200EXHSG1A IS200EXHSG1AEC Relay Driver Board uses one 64-pin DIN connector for backplane signals. This connector carries all 16 logic inputs from the VCRC controller. A 37-pin D-sub connector handles field wiring to external relays. Sixteen green LEDs light up for each active output channel. A red LED signals a short circuit or overcurrent fault. Moreover, a yellow LED confirms 24 VDC supply presence.

Energy Storage and Protection Circuits

This relay driver board contains small filtering capacitors only on the 24 VDC input. Therefore, it stores very little energy after power removal. Each output includes a built-in flyback diode for inductive load protection. This diode clamps voltage spikes from relay coil de-energization. Furthermore, the GE IS200EXHSG1A IS200EXHSG1AEC Relay Driver Board integrates thermal shutdown protection. The board disables all outputs if internal temperature exceeds safe limits. You can reset the board by cycling the 24 VDC power. Do not exceed 500 mA per output channel continuously. Use external fusing for loads above this rating.

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