Overview
The rated power of E82EV551K4C is usually marked as 0.55 kW (corresponding to 0.75 horsepower); it is suitable for 3-phase 400 – 500V AC input, the input current is 2.5A/2.0A, and supports 50/60Hz mains frequency; the output is 0 – 400/500V AC, the output current is 1.8A/1.4A, and the output frequency range can reach 0 – 650Hz, and also compatible with 450 – 625V DC power supply, with strong adaptability.
FAQ:
1.How to judge whether the braking resistor of E82EV551K4C needs to be replaced?
To determine whether the E82EV551K4C braking resistor needs to be replaced, look at 4 key points:
- Appearance: Burnt and black, cracked, broken pins/loose and damaged wiring;
- Resistance value: measured with a multimeter (disconnect the wiring), the error from the nominal value exceeds ±10%, open circuit (infinity) or short circuit (close to 0);
- Fault: Frequently reports overvoltage faults (such as F2023/F2024), after troubleshooting power supply/parameter problems;
- Operation: The braking performance deteriorates (slow stop, jitter), frequent overheating protection, and the inverter heat dissipation is normal.
2.Will the output power of E82EV551K4C be attenuated in DC power supply mode (450-625V)?
In the 450 – 625V DC power supply mode, the output power of the E82EV551K4C usually does not show significant attenuation.
The original design of the inverter is to be compatible with both AC power supply and DC power supply modes to improve adaptability. Its rated typical motor drive power is 0.75 kilowatts. This core output power indicator does not indicate attenuation instructions for the DC power supply mode. From a principle point of view, its vector control core module and power output unit can adapt to the reasonable DC voltage range of 450 – 625V, and can stably convert DC power into the adjustable frequency AC power required by the motor.
3.Can the maximum output frequency supported by E82EV551K4C be extended to above 650Hz?
As a Lenze 8200 series vector inverter, E82EV551K4C is not recommended and difficult to stably expand to an output frequency above 650Hz. The specific reasons are as follows:
- The upper limit of hardware calibration is 650Hz. Overclocking is prone to overheating and failure;
- Software parameters have no extended range and cannot be modified routinely;
- There is no official upgrade/renovation plan, and private modifications will void the warranty;
- It needs to be equipped with a high-speed motor, and ordinary motors cannot be adapted.
In addition, even if the limitations of the inverter itself are ignored, high frequencies above 650Hz require a high-speed special motor. At this frequency, ordinary motors will face the risk of damage due to centrifugal force, temperature rise and other issues. Overall, this type of inverter cannot achieve stable output expansion above 650Hz.
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