You can use the OOB (Out Of Balance Detection) function with the PLC program in the washing
machine system. When the multi-function input terminal Pr.02-01–02-07 is set to 82 (OOB
loading balance detection), the Pr.07-48 (OOB Average Sampling Angle) Δθ value is set
according to Pr.07-46 (OOB Sampling Time) and Pr.07-47 (Number of OOB Sampling Times).
The PLC or host controller determines the motor speed according to the Pr.07-48 (OOB Average
Sampling Angle) Δθ value. When the Average Sampling Angle Δθ value is large, the load is
unbalanced. In this case, the PLC or host controller must decrease the Frequency command.
Otherwise, increase the Frequency command to execute high speed operations when Pr.07-48
Δθ value is small.
Related parameters: Pr.02-01–Pr.02-07 (Multi-function Input Commands).
Sets the PI gain of DC bus voltage controller when the dEb function activates.
If the DC bus voltage drops too fast, or the speed oscillation occurs during deceleration after the
dEb function activates, adjust Pr.07-62 and Pr.07-63. Increase the Kp setting to quicken the
control response, but the oscillation may occur if the setting is too large. Use Ki parameter to
decrease the steady-state error to zero, and increase the setting to quicken the response speed.
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