Product Introduce
20AD5P0A0AYNNNC0 is an AC inverter of the PowerFlex 70 series, adapted to three-phase 480V AC input, with an operating current of 5 amps, an output voltage range of 0 – 460V AC, and is compatible with 50Hz/60Hz power frequency environments. It has a built-in braking insulated gate bipolar transistor (IGBT), but no built-in braking resistor; no filtering function, a blank cover plate at the interface, no communication slot, and no feedback function and safe shutdown function.
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FAQ:
1.20AD5P0A0AYNNNC0 has a braking IGBT but no built-in braking resistor. What are the selection criteria for an external braking resistor? What parameters need to be matched for resistance and power?
- Selection principles: The resistance value must be within the allowable range of the braking unit to avoid burning the IGBT if it is too small and insufficient braking if it is too large; the power should match the braking average/peak power and duty cycle, leaving a safety margin; give priority to the original matching model for better compatibility.
- Resistance matching: Match the 670V DC bus voltage corresponding to the 480V input and the maximum allowable current of the braking unit. Calculate the minimum resistance value according to the formula \(R_{min}=U_{dc}/I_{max}\), the reference value is about 115Ω; when the load inertia is small and the braking requirements are low, you can choose a larger value.
- Power matching: Match 2.2kW motor power, load inertia, braking frequency and duty cycle. For low duty cycle intermittent braking scenarios, refer to the original 0.04kW continuous power specification; high frequency braking needs to be selected according to 1.5-2 times the calculated value to avoid overheating.
- Additional requirements: The resistor withstand voltage is ≥804V (670V×1.2), and a heat dissipation device is required in high temperature/dusty environments.
2.How to enable the fly-on function of 20AD5P0A0AYNNNC0? Which equipment scenarios are suitable for frequent shutdown and restart?
How to enable:
- Panel settings: Enter the S.M.A.R.T startup interface, configure basic parameters such as motor rated voltage/current, enable the fly-start function, select “Last Known Frequency” or “Preset Frequency Search” mode as needed, save and exit.
- Computer configuration: Use DriveExplorer/DriveTools SP software to connect to the inverter, check the fly-start function, configure the motor parameters and frequency search mode, and the download will take effect.
Adaptation scenarios: Suitable for frequently starting and stopping equipment whose loads are still inertially rotating after shutdown: belt conveyors, small mixers/mixers, small pumps and fans, and light industrial textile spinning machines/winding machines.


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