instruction for Control Panel of Variable Frequency Power Supply

All items on the panel are described orderly from left to right, from top to bottom.
1.Frequency Display Window: 3-digit LED display; display the preset output voltage frequency at presetting; display the actual output voltage frequency at operating. Unit: Hz
2.Voltage Display Window: 4-digit LED display; display the preset output voltage at presetting; display the actual output voltage at operating. Unit: V
3.Current Display Window: 4-digit LED display; display “0” at presetting; display the actual output current at operating. Unit: A
4.Power Display Window: 4-digit LED display; display “0” at presetting; display the actual output power at operating. Unit: KVA
5. “Shortcut” Key: quickly select 50Hz/220V, 60Hz/110V and 60Hz/120V.
6.50Hz/220V Indicator: The solid indicator during operating shows the output voltage is 220V and frequency 50Hz.
7.60Hz/110V Indicator: The solid indicator during operating shows the output voltage is 110V and frequency 60Hz.
8.60Hz/120V Indicator: The solid indicator during operating shows the output voltage is 120V and frequency 60Hz.
9.“Preset” Key: In the standby mode, press the key to enter the preset status. At this point, you can press the “ Plus ” and “ Minus ” keys to preset the output voltage frequency and output voltage in order. During operating, you can press this key to adjust the output voltage frequency and output voltage.
10.“Plus ” Key: Press this key to increase the preset value in the preset status.
11.“Minus ” Key: Press this key to reduce the preset value in the preset status.
12.“Start” Key: Press this key to enter the operating status. The output indicator will light.
13.“Stop” Key: After this key pressed, the power source will stop outputting and return to the standby status.
14.Output Indicator: The power source has voltage output when the indicator lights.