20BD040A3AYNANB0 The output frequency adjustable range is 0 – 400 Hz.
This range is the common core specification of PowerFlex 700 series inverters. Many models in the same series with similar parameters (such as 20BD3P4A3AYNACC0, 20BD052A3AYNAEN0, etc.) all follow this output frequency standard. This range can be adapted to most industrial scenarios, not only meeting the conventional speed adjustment requirements of general equipment such as fans and pumps, but also responding to some special working conditions that require high-speed operation. In addition, the input frequency tolerance range of this series of inverters is 47 – 63 Hz, which can adapt to grid frequency fluctuations in different regions.

20BD040A3AYNANB0 overload capability is divided into two application scenarios: normal load and heavy load:

1. Ordinary load scenario: It is suitable for normal working conditions with low overload demand (such as smooth speed regulation of ordinary fans and water pumps). The overload capacity is 110% rated current for 1 minute and 150% rated current for 3 seconds. The rated output current of this model is 40 amps, which corresponds to 44 amps for 1 minute of overload, and 60 amps for 3 seconds of overload.
2. Heavy load scenario: Adapted to harsh working conditions with frequent starts and large load fluctuations (such as conveyor belts, cranes, etc.), the overload capacity can reach 150% of the rated current for 1 minute, and 200% of the rated current for 3 seconds. After conversion, 60 amps can sustain overload for 1 minute, and 80 amps can sustain overload for 3 seconds, which can meet the high current demand when the equipment is started.

If the inverter output frequency is lower than the set “Overload Frequency (Motor OL Hertz)”, its overload capability will decrease. When the output frequency is 0, the overload capability will drop to 70%. At the same time, the “Motor Overload Coefficient” parameter can also be adjusted to fine-tune the current threshold of the overload protection to suit the needs of a specific motor.

3.When 20BD040A3AYNANB0 is used for fans and pumps, is it necessary to turn on the dedicated energy-saving control function?

When 20BD040A3AYNANB0 is used for fans and pumps, it is recommended to turn on the special energy-saving function：

1. Adapt to the square torque load characteristics, replace throttling adjustment with precise speed adjustment, and reduce energy waste;
2. Turn on the “fan/pump curve” and optimize voltage regulation, which can reduce energy consumption by 10%-15%;
3. Combined with V/F control, PID control, etc., it can realize on-demand energy supply and enhance energy saving and working condition stability.

However, if fans and pumps are operating at full load for a long time without fluctuations in operating conditions, the energy-saving effect of the dedicated energy-saving function will be relatively limited. At this time, you can choose whether to turn it on based on actual energy consumption data.

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