6KC1121F50X1A1

About the 6KC1121F50X1A1

The 6KC1121F50X1A1 is a part of the AF-300 C11 series by Fuji Electric. This part is a single phase 230V input. This drive weighs one and a half pounds and has ½ horsepower. The rated output is 2.5 and the overload is 3.8.

The motor rotates when a frequency value and running command are input from the keypad panel or external signal terminal. Use a low frequency (about 5Hz) for trial runs. A frequency can be set using the built-in frequency setting POT (VR), and forward/stop can be performed using the keypad panel with the functions set in the factory.

Check the following items: a) Rotation direction. b) Whether rotation is smooth (whether there is a motor buzzing noise or abnormal vibration). c) Whether acceleration and deceleration are smooth. d) Whether the drive cooling fan is rotating (1.5kW or more) If no abnormality is detected, check the item again by increasing the frequency.

Even if the output from the drive is stopped, you will be getting an electric shock when you touch the main circuit terminals such as drive output terminals U, V and W if the voltage is supplied to the main power supply input terminal. The smoothing capacitor in the drive has been charged when the power is turned off and it is not discharged immediately. Before touching the electric circuit, wait until at least five minutes have elapsed after power-off and the charge pump is off, indicating the voltage is already low. After checking normality in the above trial run, start operation.