Start-up operation of the metal melting furnace
1. Close the low-voltage switch box switch of the incoming line, observe whether the three-phase incoming line voltage and ammeter indicate whether it is normal, and adjust the power adjustment potentiometer to the minimum value;
2. Press the control power switch-on button, press the “main circuit switch-on button” after 2 to 3 seconds, then press the “inverter start button”, the intermediate frequency power supply starts to work, at this time the DC voltmeter, ammeter, intermediate frequency frequency meter, The power meter has instructions;
3. After the startup is successful, slowly adjust the power knob to the desired power position and enter the power; if the intermediate frequency is not established (ie the startup fails), press the “inverter stop” button to reset it, and then press the “inverter start” again. Can.