<Basic Pump Clean Operation>
When a pump clean start command is given, the inverter waits until the delay time set at AP2-19
elapses, accelerates by the acceleration time set at AP2-22, and operates at the frequency set at
AP2-25. The pump runs for the time set at AP2-24, decelerates by the time set at AP2-23, and
then stops. This operation repeats in the forward and reverse directions (one after another) for the
number of times set at AP2-28 (PC Num of Step). Each time the steps (Fx/Rx) switch, the inverter
waits at a stop state for the time set at AP2-21 before going on with the next step. One step in the
forward direction and another step in the reverse direction makes one cycle. The number of pump
clean cycles is set at AP2-30. In the figure above, AP2-28 is set to ‘1’, and AP2-30 is set to ‘1’.