These cables monitor the generator's phase output. Ensure these are securely connected to the main stator output terminals. Loose or corroded "A-B-C-D" cables often cause uneven phase voltages (e.g., 12V on one phase and 6V on others).
Use a torque screwdriver to ensure all connections are tight. Vibration from the generator can loosen spade terminals over time. an-5-203 avr wiring diagram pdf
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 These cables monitor the generator's phase output
Do not touch the AVR while the generator is running, as internal components carry high voltage. Troubleshooting Common Issues Use a torque screwdriver to ensure all connections are tight
If no external potentiometer is used, the dedicated connection terminals must be with a connection piece for the AVR to function. 3. On-Board Adjustments
Typical exciter resistance for these units is approximately , with a current draw of roughly 0.2A during operation. External Potentiometer (Optional):
Check the sensing wires (A-B-C-D) for continuity. A single loose wire here will cause the AVR to misread the load and output incorrect voltage. manual - denyo.info