I/O modules

Technical Specifications

Physical Construction and Component Layout

This DS200UDSAG1A DS200UDSAG1APR2 excitation board measures 8.9 inches in length. Its width reaches 6.1 inches with a thickness of 1.7 inches. The total weight comes to approximately 1.48 pounds. Manufacturers placed 256 discrete components on this six-layer PCB. These components include SCR bridges, firing circuits, PID controller, and protection relays. Both DS200UDSAG1A and DS200UDSAG1APR2 share the same excitation control architecture.

Excitation Output and Regulation Performance

DS200UDSAG1A DS200UDSAG1APR2 delivers adjustable DC voltage from 50 to 250V. The output provides up to 10 amps for field excitation current. A PID closed-loop regulator maintains precise voltage or current control. The control input accepts either 4-20 mA or 0-10V command signals. Response time reaches 30 milliseconds typical for dynamic regulation. Voltage regulation stays within ±0.25% at steady state operation. Consequently, this board provides stable excitation for synchronous generators and motors.

Protection Features and Status Indication

DS200UDSAG1A DS200UDSAG1APR2 includes essential protection for reliable field control. Overcurrent protection shuts down the output during excessive field current. Field loss protection detects open circuits in the rotor winding. Eight LED indicators show critical operational status at a glance. Green LEDs indicate power, regulation active, and field healthy status. Red LEDs illuminate for overcurrent, field loss, or fault conditions. The board accepts either 120V AC or 240V AC input power. Total power draw reaches 180 VA under full load conditions.

Energy Storage and Application Use

DS200UDSAG1A DS200UDSAG1APR2 integrates four 1000µF capacitors for bulk storage capacity. Eight additional 220µF capacitors filter ripple from the excitation output. Natural convection cooling eliminates the need for fans. You will find this board in GE generator excitation systems and motor controls. It supplies field current for synchronous machines and alternators. The board operates reliably from 0°C to 55°C ambient temperature. For example, it excites turbine generators or synchronous motor drives. Therefore, this excitation board delivers precise field control for rotating electrical machinery.

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