1. Alarm Indicator: Different protection states are indicated by the alarm indicator lights. 2. Emergency Stop Button: Used for an emergency stop of the variable frequency power supply. 3. Start/Reset Button: Used to start the variable frequency power supply, or to restart it after a protection fault has been cleared. 4. Frequency Fine-Tuning Knob: Used for fine-tuning the frequency when adjustable frequency ranges are available. Aviation Ground Power 2, 36V Aviation Power 1, 400Hz Variable Frequency Power Supply 7, 115/200V Power Supply 2, 27V DC Power Supply 5, 400Hz Power Supply 12, Aviation Power
5. Frequency Switch: Adjustable frequency with a fixed frequency switch option of 50Hz/60Hz. 6. Output Voltage High/Low Switch Button (Switches between 0~260V and 0~520V) 7. Standard Voltage Output Fine-Tuning Knob: A 10-turn fine-tuning switch with a locking feature, allowing for precise adjustment to achieve the desired standard voltage. 8. Comprehensive Electric Meter: Displays comprehensive parameters such as output frequency, voltage, current, power, and power factor of the variable frequency power supply.
