Do not touch the AVR while the generator is running, as internal components carry high voltage. Troubleshooting Common Issues
Typical exciter resistance for these units is approximately , with a current draw of roughly 0.2A during operation. External Potentiometer (Optional): an-5-203 avr wiring diagram pdf
The AN-5-203 typically utilizes a series of labeled wires or terminals (A-B-C-D and J-K) to interface with the generator's internal windings. Do not touch the AVR while the generator
Used to set the protection threshold for low-frequency operation (50/60Hz selectable). 4. Installation & Safety Steps Used to set the protection threshold for low-frequency
Before beginning the wiring process, verify that your unit matches these standard operating parameters: Specification Main Winding Input 400VAC, 50Hz/60Hz Auxiliary Winding Input 55V – 220V AC Maximum Output 120V / 5A DC (for 10 seconds) Voltage Regulation < ±0.5% (Steady State) Field Resistance Min. Residual Voltage > 5V / 30Hz 2. Wiring Diagram & Terminal Connections
If using an external voltage control, connect a potentiometer. This allows for a ±12% fine-tune adjustment.